Google Calendar integration

Google Calendar is Google's calendar service. This integration lets your WeWeb backend list calendars, create, update and delete events (timed, all-day or repeating), and show the events of a calendar in a table.

It is a good fit for booking, appointment and scheduling features: each booking becomes an event on a calendar your team already uses.

Use cases

• Create an event on a shared calendar when a user books a slot in your app.
• Show the upcoming events of a calendar in a Data Grid, through a table.
• Reschedule or cancel bookings from an admin screen.
• Block time on a team calendar, for example holidays or maintenance windows.
• Check a calendar on a schedule to react to new, changed or cancelled events.

Setup

Google Calendar authenticates with a service account: a robot Google identity that belongs to your Google Cloud project. You create it once, download its JSON key, share your calendars with its email address the same way you would share with a person, and then register each calendar by its ID.

1. Sign in to Google Cloud Console.

2. Create a project or select an existing one.

3. Enable the Google Calendar API.

4. Go to IAM & Admin → Service Accounts and click Create service account.

5. Name the service account and click Create and continue.

6. Skip role assignment and click Done.

7. Open the service account menu (three dots) → Manage keys → Add key → Create new key → JSON, then download the key file.

8. Copy the service account email from the Details tab.

9. In Google Calendar settings, open each calendar you want to use in WeWeb, go to Settings and sharing → Share with specific people, paste the service account email, pick Make changes to events (needed to create, update or delete events), and click Send.

10. In WeWeb, open Data & API → Integrations, select Google Calendar, and click Add Connection.

11. Add your credentials for each environment you use (Editor, Staging, Production):

    • Client Email — From the JSON key (client_email)
    • Private Key — From the JSON key (private_key)

    You can also upload the JSON key file in the connection screen to auto-fill these fields. Staging only appears if your plan includes it.

12. Save the connection. Then, for each calendar shared in step 9, copy its ID from Google Calendar (Settings and sharing → Integrate calendar, for example c_abc123@group.calendar.google.com), paste it in the Register your calendars box of the connection, and click Register.

13. Test in WeWeb by running the List Calendars action: it should return the calendars you registered in step 12.

USE THE SAME JSON KEY IN EVERY ENVIRONMENT

Calendars are shared with, and registered for, one service account. WeWeb always registers calendars with the key of the Editor environment. If Production uses a different key, its service account has no registered calendars and List Calendars comes back empty in your live app. Using the same JSON key everywhere avoids this.

How Google Calendar works with a service account

A few Calendar concepts shape every action on this page.

Share the calendar, then register it

Sharing a calendar with the service account gives it access, but the calendar still doesn't show up anywhere in WeWeb. You also need to register it once by its ID in the connection (step 10 above). After that, it appears in every Calendar dropdown and in List Calendars.

If registering fails with Not Found, either the ID is wrong or the calendar isn't shared with the service account email yet.

To stop using a calendar, click the trash icon next to it (Remove from this connection). This only removes it from the connection: the calendar and its sharing settings stay as they are.

The Calendar dropdown of Create Event, Update Event and Delete Event only lists the calendars the service account can change (shared with Make changes to events). In List Events and Get Event, the other calendars appear with (read-only) after their name.

Calendar IDs

Every calendar has a permanent ID, found in Google Calendar under Settings and sharing → Integrate calendar. A shared calendar has an ID that looks like an email address, such as c_abc123@group.calendar.google.com. A person's main calendar has their email address as its ID.

You can't use primary as a calendar ID. For a service account, it would point to its own private calendar, which nobody can open, so WeWeb refuses it before calling Google. Use a real calendar ID from List Calendars instead.

Dates and times

Event times are a date and a time with a time zone, written like 2026-09-23T10:00:00Z. The Z at the end means UTC. You can also end the value with an offset, such as 2026-09-23T10:00:00+02:00 for Paris in summer.

When you pick a Time Zone (for example Europe/Paris), you can also send a date and time without a time zone, like 2026-09-23T10:00:00: WeWeb reads it as 10:00 in the zone you picked. Without a Time Zone, the value must end with Z or an offset, otherwise it is refused.

In the editor, picking a Time Zone keeps the time you see on screen: 10:00 stays 10:00 in the new zone.

DATES COMING FROM A PAGE

A date picker on a page usually sends its value in UTC, with a Z at the end. That value already fixes the exact moment, so Time Zone only labels the event: 10:00 picked in Paris and sent with America/New_York lands at 04:00 in New York. To book 10:00 in a given zone, send the date and time without the Z together with Time Zone.

Timed and all-day events

Create Event and Update Event handle both kinds of events with the All-day event toggle:

• Timed events (toggle off, the default): Start and End are a date and a time.
• All-day events (toggle on): Start and End are dates only (2026-09-23), and the time zone doesn't apply.

For an all-day event, End is the day after the last day. A one-day event on 2026-09-23 has End set to 2026-09-24. When you switch All-day event on for an event that starts and ends on the same day, WeWeb moves End to the next day for you.

You can bind All-day event to a value, so one action can create both kinds of events (for example, from a checkbox on your booking form). Make sure the Start and End you bind match it.

Repeating events

Recurrence offers the common choices: Does not repeat, Every day, Every weekday (Mon–Fri), Every week, Every 2 weeks, Every month and Every year, all starting from the start date.

For anything else (specific days, an end date, a number of times), bind a repeat rule written in the standard calendar format (RRULE). For example, RRULE:FREQ=WEEKLY;BYDAY=TU,TH;COUNT=5 repeats every Tuesday and Thursday, 5 times. The RRULE generator builds one for you, and Google's guide to recurring events explains the format.

A repeating timed event needs a Time Zone. The form makes it required as soon as you pick a recurrence.

When List Events returns a repeating event, each occurrence comes back as its own event, with its own id and a recurringEventId that points to the series. Deleting an occurrence's id removes just that day. Deleting the series ID removes every occurrence.

Updating an event

In Update Event, start by choosing what to change in Fields to update, for example Title or Description. Only those fields appear in the form, and only those are changed. Everything else on the event stays as it is.

A field you pick and leave empty is cleared: an empty Description removes the description, an empty Recurrence stops the event from repeating, and empty Reminders go back to the calendar's default reminders. Title can't be cleared, and the time (Start, End, All-day event, Time Zone) is only changed when you fill it in.

You can also use Update Event to:

• Turn a timed event into an all-day event, or the other way round: pick Time (Start, End, All-day, Time Zone), switch All-day event, and fill Start and End in the matching format.
• Move an event to another time zone while keeping its time: fill only Time Zone. 10:00 in Paris becomes 10:00 in Tokyo.

Guests

A service account can't invite guests on its own. Google refuses any event with Attendees (error 403 Service accounts cannot invite attendees without Domain-Wide Delegation of Authority), unless a Google Workspace admin has given the service account Domain-Wide Delegation.

Without it, leave Attendees empty and use the calendar as a schedule rather than an invitation system. Send Updates only matters for events that already have guests, for example guests added by hand in Google Calendar.

Checking a calendar for changes

There is no trigger that runs a workflow when an event is created or changed in Google Calendar. Instead, check the calendar on a schedule:

1. Store the time of the last check in a table or a variable.
2. In Data & API → Backend Workflows → Scheduled Tasks, create a task that runs List Events with Updated Since bound to that stored time, and Include deleted events turned on so cancelled events come back too.
3. Act on the returned events, then save the current time as the new last check.

Don't use Time Min for this: it filters on when events end, not on when they were changed.

Using Google Calendar as a data source for tables

Besides calling Google Calendar actions from workflows, you can use Google Calendar as a data source for tables in WeWeb. A table linked to Google Calendar lists the events of one calendar. That table can be bound to table components (e.g. Data Grid) or fetched from the interface with the Table View: Fetch action.

Add a Google Calendar table

1. In WeWeb, go to the Data & API tab, then open the Tables subtab → Add Table.
2. Choose Google Calendar as the data source.
3. Select your Google Calendar connection.
4. Select the Calendar whose events fill the table. Only calendars registered in the connection appear here.
5. Save. The table is now available in your project.

Rows come with these columns: id, summary (the title), description, location, status, start, end, allDay, htmlLink (the link to the event in Google Calendar), organizerEmail, attendeesCount, created, updated and recurringEventId (empty unless the row is an occurrence of a repeating event). Each occurrence of a repeating event is its own row. For an all-day event, end is the day after the last day.

Configure a view

Views define which events the table returns. On the Google Calendar table you added:

1. Create or edit a view for that table.
2. Open Configuration and set any of these optional fields:
   • Time Min — Only events that end after this date and time.
   • Time Max — Only events that start before this date and time.
   • Search — Words to look for in the event title, description, location and guests.
   • Order By — Start time or Last modified.

The view loads 100 events at a time by default, up to 250. Google only tells WeWeb how to get the next batch, not how to jump to a given page, so use a Load more button rather than numbered pages. When everything is loaded, the load more action returns the error No more data to load.: put it inside a Try/Catch and use the Catch branch to show an end-of-list message.

Use the table in the interface

• Bind a view — In the binding menu, under Table Views, select the view. Bind it to a Data Grid, repeating group, or list.
• Table View: Fetch — In an interface workflow, add the Table View: Fetch action, choose your Google Calendar table view, and pass any parameters the view expects.

For the general pattern of tables, views, and fetching data, see Working with data and Table View: Fetch.

Common pitfalls (setup & usage)

A shared calendar doesn't appear in the dropdowns

Sharing alone isn't enough. Register the calendar once by its ID in the connection (Register your calendars), and it appears in every Calendar dropdown and in List Calendars.

A calendar is missing from Create Event

The write actions only list calendars the service account can change. In Google Calendar, share the calendar with Make changes to events instead of a read-only option.

Registering a calendar fails with Not Found

Either the calendar ID is wrong, or the calendar isn't shared with the service account. Check the ID in Settings and sharing → Integrate calendar, and check that the calendar is shared with the exact Client Email of the connection.

Not Found on Get, Update or Delete Event

Google sends the same Not Found error when the calendar ID is wrong and when the event doesn't exist. Run List Calendars to check the calendar first, then the event ID.

Adding guests fails with a 403 error

A service account needs Domain-Wide Delegation to invite guests. See Guests.

An all-day event is refused

For an all-day event, End must be the day after the last day. An event whose End is the same day as Start is refused, and the error tells you which end date to use. This mostly happens with bound values: when you switch All-day event on in the form, WeWeb already moves End to the next day.

A repeating event is refused

A repeating timed event needs a Time Zone, even when Start and End end with Z or an offset. Google's error message blames the time zone, not the repeat rule. If you bind Recurrence, bind Time Zone too.

Order By start time is refused

Sorting by Start time only works while Expand recurring events is on (the default). When you turn it off, only Last modified is offered.

My page gets "Internal Server Error" instead of the real error

When a Google Calendar action fails inside an API endpoint, the endpoint answers with a generic 500 Internal Server Error, and your page never sees the reason. To send the real message to your page:

1. Add a Try/Catch to the endpoint and put the Google Calendar action in the Try branch.
2. In the Catch branch, add a Send Response.
3. Bind its data to the error message of the Try/Catch (caughtError.message), and its status code to Google's own code (caughtError.cause.code), with 400 as a fallback for errors that WeWeb catches itself.

Learn more about Try/Catch →

All Actions

Six actions: one for calendars, five for events. Each action name links to its details below.

Action	Description
List Calendars	List the calendars registered in the connection, with the ID the other actions need.
List Events	List the events of a calendar, filtered by dates, last change or search words.
Get Event	Get one event by its ID.
Create Event	Create a timed, all-day or repeating event.
Update Event	Change or clear the fields you pick on an event.
Delete Event	Delete an event, one occurrence of a repeating event, or a whole series.

Action details

List Calendars

List the calendars registered in the connection, including the ID that the other actions and the events table need.

This action takes no inputs.

Example output

{
  "calendars": [
    {
      "id": "c_abc123@group.calendar.google.com",
      "summary": "Bookings",
      "timeZone": "Europe/Paris",
      "accessRole": "writer"
    }
  ]
}

accessRole is writer or owner when the service account can change the calendar, and reader when it can only see it.

Documentation of API endpoint that powers action: Google Calendar API – CalendarList: list (GET /users/me/calendarList)

List Events

List the events of a calendar. All matching events are returned at once, up to Max Results.

Inputs

Display Key	Example Input	Description	Restrictions
Calendar	c_abc123@group.calendar.google.com	Calendar to list events from. A binding takes a calendar ID.	Required
Time Min Optional	2026-09-23T10:00:00Z	Only events that end after this date and time.	Date and time ending with Z or an offset. A date alone is refused
Time Max Optional	2026-09-30T00:00:00Z	Only events that start before this date and time.	Date and time ending with Z or an offset
Updated Since Optional	2026-09-23T10:00:00Z	Only events created, changed or cancelled after this date and time. Use it to check a calendar for changes on a schedule.	Date and time ending with Z or an offset
Search Optional	planning	Words to look for in the event title, description, location and guests.	Text
Expand recurring events Optional	true	Return each occurrence of a repeating event separately. Turn it off to get each series once.	Default true
Order By Optional	startTime	Sort order. Empty keeps Google's order.	Valid: Start time (startTime, only while Expand recurring events is on), Last modified (updated)
Max Results Optional	250	Maximum number of events to return.	Whole number of at least 1. Default 250
Include deleted events Optional	false	Also return cancelled events, with status set to cancelled.	Default false
Time Zone Optional	Europe/Paris	Time zone used for the event times in the result.	Time zone name from the list. Default: the calendar's time zone
Event Types Optional	["default"]	Only return these kinds of events. Empty returns all of them.	Valid: Default (default), Birthday (birthday), Focus time (focusTime), From Gmail (fromGmail), Out of office (outOfOffice), Working location (workingLocation)

Example output

{
  "events": [
    {
      "id": "4qkr1t2j0dpk3rp44vueohvpvo_20260923T080000Z",
      "status": "confirmed",
      "summary": "Team meeting",
      "start": { "dateTime": "2026-09-23T10:00:00+02:00", "timeZone": "Europe/Paris" },
      "end": { "dateTime": "2026-09-23T11:00:00+02:00", "timeZone": "Europe/Paris" },
      "htmlLink": "https://www.google.com/calendar/event?eid=NHFrcjF0...",
      "recurringEventId": "4qkr1t2j0dpk3rp44vueohvpvo",
      "updated": "2026-09-01T09:00:00.000Z",
      "eventType": "default"
    }
  ],
  "count": 1
}

Timed events have start.dateTime and end.dateTime. All-day events have start.date and end.date instead.

Documentation of API endpoint that powers action: Google Calendar API – Events: list (GET /calendars/{calendarId}/events)

Get Event

Get one event of a calendar by its ID.

Inputs

Display Key	Example Input	Description	Restrictions
Calendar	c_abc123@group.calendar.google.com	Calendar the event belongs to.	Required
Event ID	4qkr1t2j0dpk3rp44vueohvpvo	ID of the event, as returned by List Events, Create Event or the events table.	Required
Time Zone Optional	Europe/Paris	Time zone used for the event times in the result.	Time zone name from the list. Default: the calendar's time zone

Example output

{
  "id": "4qkr1t2j0dpk3rp44vueohvpvo",
  "status": "confirmed",
  "summary": "Team meeting",
  "description": "Quarterly planning session",
  "location": "12 Rue de Rivoli, Paris",
  "start": { "dateTime": "2026-09-23T10:00:00+02:00", "timeZone": "Europe/Paris" },
  "end": { "dateTime": "2026-09-23T11:00:00+02:00", "timeZone": "Europe/Paris" },
  "recurrence": ["RRULE:FREQ=WEEKLY"],
  "reminders": { "useDefault": true },
  "htmlLink": "https://www.google.com/calendar/event?eid=NHFrcjF0...",
  "created": "2026-09-01T09:00:00.000Z",
  "updated": "2026-09-01T09:00:00.000Z",
  "eventType": "default"
}

Documentation of API endpoint that powers action: Google Calendar API – Events: get (GET /calendars/{calendarId}/events/{eventId})

Create Event

Create an event on a calendar the service account can change.

Inputs

Display Key	Example Input	Description	Restrictions
Calendar	c_abc123@group.calendar.google.com	Calendar to create the event on. Only calendars shared with Make changes to events are listed.	Required. primary is refused
Title	Team meeting	Title of the event.	Required. A title made only of spaces is refused
Start	2026-09-23T10:00:00Z	Start of the event: a date and time, or a date when All-day event is on.	Required. See Dates and times
End	2026-09-23T11:00:00Z	End of the event. For an all-day event, the day after the last day.	Required. Must be after Start
All-day event Optional	false	Turn on for an all-day event: Start and End then take dates only, like 2026-09-23.	Default false
Time Zone Optional	Europe/Paris	Time zone of Start and End. Empty uses the calendar's time zone. Hidden for all-day events.	Time zone name from the list. Required when Recurrence is set
Description Optional	Quarterly planning session	Description of the event. It can contain basic HTML.	Text
Location Optional	12 Rue de Rivoli, Paris	Where the event takes place.	Text
Attendees Optional	[{"email":"guest@example.com"}]	Guests to invite, each with an Email.	Needs Domain-Wide Delegation (Google Workspace), otherwise Google returns a 403 error. See Guests
Recurrence Optional	RRULE:FREQ=WEEKLY	How often the event repeats, starting from the start date.	Valid: Does not repeat, Every day, Every weekday (Mon–Fri), Every week, Every 2 weeks, Every month, Every year. A binding takes any RRULE
Reminders Optional	custom	Which reminders the event uses. Empty uses the calendar's default reminders.	Valid: Custom reminders (custom), No reminders (none)
Reminder Overrides Optional	[{"method":"popup","minutes":30}]	Your own reminders. Appears when Reminders is Custom reminders.	Max 5. See structure below
Visibility Optional	private	Who can see the event details.	Valid: Default (default, the calendar's setting), Public (public), Private (private)
Show As Optional	opaque	Whether the event blocks time on the calendar.	Valid: Busy (opaque), Free (transparent)
Color Optional	5	Color of the event, from Google's event color list.	1 to 11
Send Updates Optional	all	Whether Google emails the guests about the event. Empty sends no email.	Valid: All guests (all), External guests only (externalOnly), None (none)

Reminder Overrides structure

Field	Example input	Description	Restrictions
Method	popup	How the reminder is sent.	Valid: Popup (popup), Email (email)
Minutes before	30	How many minutes before the event starts the reminder is sent.	0 to 40320 (4 weeks)

Example output

{
  "id": "4qkr1t2j0dpk3rp44vueohvpvo",
  "status": "confirmed",
  "summary": "Team meeting",
  "start": { "dateTime": "2026-09-23T10:00:00+02:00", "timeZone": "Europe/Paris" },
  "end": { "dateTime": "2026-09-23T11:00:00+02:00", "timeZone": "Europe/Paris" },
  "htmlLink": "https://www.google.com/calendar/event?eid=NHFrcjF0...",
  "creator": { "email": "my-service-account@my-project.iam.gserviceaccount.com" },
  "reminders": { "useDefault": true },
  "created": "2026-09-01T09:00:00.000Z",
  "updated": "2026-09-01T09:00:00.000Z",
  "eventType": "default"
}

Keep the returned id: Get Event, Update Event and Delete Event take it as Event ID.

Documentation of API endpoint that powers action: Google Calendar API – Events: insert (POST /calendars/{calendarId}/events)

Update Event

Change or clear the fields you pick in Fields to update. Fields you don't pick keep their current value.

Inputs

Display Key	Example Input	Description	Restrictions
Calendar	c_abc123@group.calendar.google.com	Calendar the event belongs to. Only calendars shared with Make changes to events are listed.	Required
Event ID	4qkr1t2j0dpk3rp44vueohvpvo	ID of the event to update.	Required
Fields to update Optional	["summary","description"]	What to change on the event. The matching fields appear once picked. A picked field left empty is cleared.	Valid: Title, Time (Start, End, All-day, Time Zone), Description, Location, Attendees, Recurrence, Reminders, Color, Visibility, Show As
Title Optional	Team meeting (moved)	New title.	Can't be cleared. A title made only of spaces is refused
All-day event Optional	false	Switch it, with matching Start and End, to turn a timed event into an all-day event or the other way round.	Default false
Start Optional	2026-09-24T10:00:00Z	New start.	Same formats as Create Event
End Optional	2026-09-24T11:00:00Z	New end.	Must be after Start
Time Zone Optional	Asia/Tokyo	Time zone of Start and End. Filled alone, it moves the event to that zone and keeps its time.	Time zone name from the list. Refused on an all-day event
Description Optional	Moved to Thursday	New description. Empty clears it.	Text
Location Optional	Meeting room B	New location. Empty clears it.	Text
Attendees Optional	[{"email":"guest@example.com"}]	Guests, each with an Email.	Needs Domain-Wide Delegation. See Guests
Recurrence Optional	RRULE:FREQ=WEEKLY	New repeat rule. Empty stops the event from repeating.	Same choices as Create Event
Reminders Optional	none	Which reminders the event uses. Empty goes back to the calendar's default reminders.	Valid: Custom reminders (custom), No reminders (none)
Reminder Overrides Optional	[{"method":"email","minutes":60}]	Your own reminders, when Reminders is Custom reminders.	Max 5
Visibility Optional	private	Who can see the event details.	Valid: Default, Public, Private
Show As Optional	transparent	Whether the event blocks time.	Valid: Busy (opaque), Free (transparent)
Color Optional	5	Color of the event.	1 to 11
Send Updates Optional	all	Whether Google emails the guests about the change. Empty sends no email.	Valid: All guests, External guests only, None

Example output

{
  "id": "4qkr1t2j0dpk3rp44vueohvpvo",
  "status": "confirmed",
  "summary": "Team meeting (moved)",
  "start": { "dateTime": "2026-09-24T10:00:00+02:00", "timeZone": "Europe/Paris" },
  "end": { "dateTime": "2026-09-24T11:00:00+02:00", "timeZone": "Europe/Paris" },
  "htmlLink": "https://www.google.com/calendar/event?eid=NHFrcjF0...",
  "updated": "2026-09-02T08:00:00.000Z",
  "eventType": "default"
}

Documentation of API endpoint that powers action: Google Calendar API – Events: patch (PATCH /calendars/{calendarId}/events/{eventId})

Delete Event

Delete an event. Use an occurrence's own id to delete one day of a repeating event, or the series ID to delete every occurrence.

Inputs

Display Key	Example Input	Description	Restrictions
Calendar	c_abc123@group.calendar.google.com	Calendar the event belongs to. Only calendars shared with Make changes to events are listed.	Required
Event ID	4qkr1t2j0dpk3rp44vueohvpvo	ID of the event, or of one occurrence, to delete.	Required
Send Updates Optional	all	Whether Google emails the guests about the cancellation. Empty sends no email.	Valid: All guests, External guests only, None

Example output

{ "success": true }

Documentation of API endpoint that powers action: Google Calendar API – Events: delete (DELETE /calendars/{calendarId}/events/{eventId})

Error handling

Errors come from two places, and they read differently:

• WeWeb checks some values before calling Google, and explains what to fix when one is wrong: a missing Client Email or Private Key, primary as a calendar ID, a date or time in the wrong format or without a time zone, an all-day End that isn't after Start, a title made only of spaces, Title picked in Fields to update but left empty, an unknown Reminders value, a Max Results that isn't a whole number, a Time Zone on an all-day event, or a table with no calendar.
• Errors from Google stop the workflow, and the workflow logs show Google's own message, such as Not Found. Inside an API endpoint, the caller only gets 500 Internal Server Error unless you return the error yourself (see the pitfall above).

Error code and type	Reason
400 Bad Request	Order By set to start time while Expand recurring events is off, an invalid repeat rule, or a repeating timed event without a time zone (the message blames the time zone).
401 Unauthorized	Invalid or malformed service account credentials (Client Email / Private Key mismatch).
403 Forbidden	The Google Calendar API isn't enabled in the Google Cloud project, the calendar is shared read-only (You need to have writer access to this calendar), or the event has guests and the service account has no Domain-Wide Delegation.
404 Not Found	The calendar ID is wrong or not shared with the service account, or the event doesn't exist. Check the calendar first.
429 Too Many Requests	Calendar API rate limit reached; reduce concurrency and retry with backoff.
500 Internal Server Error	Google-side error; retry with backoff.

FAQs

Where do I find the calendar ID?

In Google Calendar, open Settings and sharing → Integrate calendar → Calendar ID. A shared calendar's ID looks like c_abc123@group.calendar.google.com. A person's main calendar has their email address as its ID. Once the calendar is registered, List Calendars also returns it.

Why doesn't my calendar appear after I shared it?

Sharing gives access but doesn't make the calendar appear in WeWeb. Register it once by its ID in the connection (Register your calendars). It then appears in every Calendar dropdown and in List Calendars.

Can I use primary as the calendar ID?

No. For a service account, primary points to its own private calendar, which nobody can open, so WeWeb refuses it. Use a real calendar ID from List Calendars.

How do I make an event repeat on specific days?

Bind Recurrence to a repeat rule. For example, RRULE:FREQ=WEEKLY;BYDAY=MO,WE,FR;UNTIL=20261231 repeats every Monday, Wednesday and Friday until the end of 2026. The RRULE generator builds one for you. A repeating timed event also needs a Time Zone.

Can I invite guests?

Only if a Google Workspace admin has given the service account Domain-Wide Delegation. Without it, Google refuses any event with Attendees. See Guests.

How do I run a workflow when an event is created or changed?

There is no trigger for this. Create a scheduled task that runs List Events with Updated Since bound to the time of the last check and Include deleted events turned on. See Checking a calendar for changes.

How do I remove the description of an event?

In Update Event, pick Description in Fields to update and leave the field empty. The same works for the location, the guests, the repeat rule and the other fields, except the title.

How do I delete one occurrence of a repeating event?

Run List Events with Expand recurring events on (the default). Each occurrence has its own id: pass it to Delete Event to remove only that day. Passing the series ID (recurringEventId) removes every occurrence.

CONTINUE LEARNING

Google Calendar is one of several Google services you can connect with the same kind of service account. See how Google Sheets works as a data source for tables.

Learn more about the Google Sheets integration →