Integration
Connect Google Calendar and QuickBooks Online
When Event Canceled or Deleted fires in Google Calendar, your agent runs Find customer by name in QuickBooks Online, or New bill in QuickBooks Online to Create Event in Google Calendar. Describe the whole flow and it is built, tested on every scenario and kept running.
What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.
Build solutions, not workarounds.
What do you want Google Calendar and QuickBooks Online to do together?
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Setup guide (opens in a new tab)Google Calendar holds the meetings, sessions and site visits your team actually delivers; QuickBooks Online holds the customers, invoices and bills that follow from them. Connecting the two means a booked or cancelled event can create, update or void the matching QuickBooks record, and a new invoice or bill can put its due date on the calendar.
Example flows
What Google Calendar and QuickBooks Online can do together
From Google Calendar to QuickBooks Online
When Event Canceled or Deleted in Google Calendar
then Find customer by name in QuickBooks Online
When Event Created in Google Calendar
then Update invoice in QuickBooks Online
From QuickBooks Online to Google Calendar
When New bill in QuickBooks Online
then Create Event in Google Calendar
When New estimate in QuickBooks Online
then Update Event in Google Calendar
Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships.
Everything your agent can do with Google Calendar and QuickBooks Online
Triggers and actions 17 triggers · 90 actions
Trigger
Attendee Response ChangedPolling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status.
Trigger
Calendar Event SyncPolling trigger that returns full event data including details, attendees, and metadata. For real-time notifications with basic info, use Calendar Event Changes (webhook).
Trigger
Event Canceled or DeletedTriggers when a Google Calendar event is cancelled or deleted. Returns minimal data: event_id, summary (if available), and cancellation timestamp.
Trigger
Event CreatedPolling trigger that fires when a new calendar event is created. Returns event ID, summary, start/end times, and organizer info.
Trigger
Event Starting SoonTriggers when a calendar event is within a configured number of minutes from starting. Returns event details, time remaining, attendees, and join links when available.
Trigger
Event UpdatedTriggers when an existing Google Calendar event is modified. Returns the event ID, change type, and the specific fields that changed with their previous and new values.
Action
Acl DeleteDeletes an access control rule from a Google Calendar. Use when you need to remove sharing permissions for a user, group, or domain.
Action
Acl GetRetrieves a specific access control rule for a calendar. Use when you need to check permissions for a specific user, group, or domain.
Action
Acl InsertCreates an access control rule for a calendar. Use when you need to grant sharing permissions to a user, group, or domain.
Action
Acl ListRetrieves the list of access control rules (ACLs) for a specified calendar, providing the necessary 'rule_id' values required for updating specific ACL rules.
Action
Acl PatchUpdates an existing access control rule for a calendar using patch semantics (partial update). This allows modifying specific fields without affecting other properties. IMPORTANT: The ACL rule must already exist on the calendar. This action cannot create new rules. If you receive a 404 Not Found error, the rule does not exist - use ACL insert to create it first, or use ACL list to verify available rules. Each patch request consumes three quota units. For domain-type ACL rules, if PATCH fails with 500 error, this action will automatically fallback to UPDATE method.
Action
Acl UpdateUpdates an access control rule for the specified calendar.
Action
Acl WatchTool to watch for changes to ACL resources. Use when you need to set up real-time notifications for access control list modifications on a calendar.
Action
Batch EventsExecute up to 1000 event mutations (create/patch/delete) in one Google Calendar HTTP batch request with per-item status/results. Use this to materially reduce round-trips for bulk operations like migrations, cleanup, or large-scale updates.
Action
Calendar List DeleteTool to remove a calendar from the user's calendar list. Use when you need to unsubscribe from or hide a calendar from the user's list.
Action
Calendar List GetRetrieves metadata for a SINGLE specific calendar from the user's calendar list by its calendar ID. This action requires a calendarId parameter and returns details about that one calendar only. NOTE: This does NOT list all calendars. To list all calendars in the user's calendar list, use GOOGLECALENDAR_CALENDAR_LIST_LIST instead.
Action
Calendar List InsertInserts an existing calendar into the user's calendar list.
Action
Calendar List PatchUpdates an existing calendar on the user's calendar list using patch semantics. This method allows partial updates, modifying only the specified fields.
Action
Calendar List UpdateUpdates an existing entry on the user\'s calendar list.
Action
Calendar List WatchWatch for changes to CalendarList resources using push notifications. Use this to receive real-time updates when calendar list entries are modified.
Action
Calendars DeleteDeletes a secondary calendar. use calendars.clear for clearing all events on primary calendars.
Action
Calendars UpdateUpdates metadata for a calendar.
Action
Channels StopTool to stop watching resources through a notification channel. Use when you need to discontinue push notifications for a specific channel subscription.
Action
Create CalendarCreates a new secondary Google Calendar with the specified title and optional settings. Use this action when you need to create a new calendar for organizing events separately from the primary calendar. The authenticated user becomes the owner of the newly created calendar. Optional parameters include description, location, and timezone.
Action
Create EventCreates an event on a google calendar, needing rfc3339 utc start/end times (end after start) and write access to the calendar. by default, adds the organizer as an attendee unless exclude organizer is set to true.
Action
Delete EventDeletes a specified event by `event id` from a google calendar (`calendar id`); this action is idempotent and raises a 404 error if the event is not found.
Action
Duplicate CalendarCreates a new, empty google calendar with the specified title (summary).
Action
Events GetRetrieves a SINGLE event by its unique event_id (REQUIRED). This action does NOT list or search events - it fetches ONE specific event when you already know its ID. If you want to list events within a time range, search for events, or filter by criteria like time_min/time_max, use GOOGLECALENDAR_EVENTS_LIST instead.
Action
Events ImportTool to import an event as a private copy to a calendar. Use when you need to add an existing event to a calendar using its iCalUID. Only events with eventType='default' can be imported.
Action
Events InstancesReturns instances of the specified recurring event.
Action
Events ListReturns events on the specified calendar.
Action
Events List All CalendarsReturn a unified event list across all calendars in the user's calendar list for a given time range. Use when you need a single view of all events across multiple calendars. An inverted or incorrect time range silently returns empty results rather than an error. An empty `items` list means no events matched the filters—adjust `time_min`, `time_max`, or `q` before concluding no events exist.
Action
Events MoveMoves an event to another calendar, i.e., changes an event's organizer.
Action
Events WatchWatch for changes to events resources.
Action
Find EventFinds events in a specified google calendar using text query, time ranges (event start/end, last modification), and event types; ensure `timemin` is not chronologically after `timemax` if both are provided.
Action
Find Free SlotsFinds free/busy time slots in google calendars for specified calendars within a defined time range (defaults to the current day utc if `time min`/`time max` are omitted), enhancing busy intervals with event details; `time min` must precede `time max` if both are provided.
Action
Free Busy QueryReturns free/busy information for a set of calendars.
Action
Get CalendarRetrieves a specific google calendar, identified by `calendar id`, to which the authenticated user has access.
Action
Get Current Date TimeGets the current date and time, allowing for a specific timezone offset.
Action
List Acl RulesRetrieves the list of access control rules (acls) for a specified calendar, providing the necessary 'rule id' values required for updating specific acl rules.
Action
List CalendarsRetrieves calendars from the user's google calendar list, with options for pagination and filtering.
Action
Patch CalendarPartially updates (patches) an existing google calendar, modifying only the fields provided; `summary` is mandatory and cannot be an empty string, and an empty string for `description` or `location` clears them.
Action
Patch EventUpdates specified fields of an existing event in a google calendar using patch semantics (array fields like `attendees` are fully replaced if provided); ensure the `calendar id` and `event id` are valid and the user has write access to the calendar.
Action
Quick AddParses natural language text to quickly create a basic google calendar event with its title, date, and time, suitable for simple scheduling; does not support direct attendee addition or recurring events, and `calendar id` must be valid if not 'primary'.
Action
Remove AttendeeRemoves an attendee from a specified event in a google calendar; the calendar and event must exist.
Action
Settings GetTool to return a single user setting for the authenticated user. Use when you need to retrieve a specific calendar setting value.
Action
Settings ListReturns all user settings for the authenticated user.
Action
Settings WatchWatch for changes to settings resources.
Action
Sync EventsSynchronizes google calendar events, performing a full sync if no `sync token` is provided or if a 410 gone error (due to an expired token) necessitates it, otherwise performs an incremental sync for events changed since the `sync token` was issued.
Action
Update Acl RuleUpdates an access control rule for the specified calendar.
Action
Update EventUpdates an existing event by `event id` in a google calendar; this is a full put replacement, so provide all desired fields as unspecified ones may be cleared or reset.
Trigger
New billPolls for newly created bills (accounts payable), most recent first.
Trigger
New customerPolls for newly created customers, most recent first.
Trigger
New estimateFires when a new estimate is created in QuickBooks Online.
Trigger
New invoicePolls for newly created invoices, most recent first.
Trigger
New or updated customerFires when a QuickBooks customer is created or any of its details change.
Trigger
New or updated estimateFires when a QuickBooks estimate is created or edited.
Trigger
New or updated invoiceFires when a QuickBooks invoice is created or edited — line items, amounts, due date, or status.
Trigger
New or updated itemFires when a QuickBooks product or service item is created or edited.
Trigger
New or updated vendorFires when a QuickBooks vendor is created or any of its details change.
Trigger
New paid invoicePolls for invoices that are fully paid (Balance = 0), most recently updated first.
Trigger
New paymentPolls for newly created customer payments, most recent first.
Action
Create accountCreate an account in the QuickBooks chart of accounts — name, account type, and detail type.
Action
Create billCreates a new bill (accounts payable) for a vendor with a single account-based line item.
Action
Create credit memoCreates a new credit memo for a customer with a single line item.
Action
Create customerCreates a new customer in QuickBooks Online.
Action
Create estimateCreate a QuickBooks Online estimate (quote) for a customer.
Action
Create expense (purchase)Creates a new expense (Purchase) paid from a bank/credit-card account with one account-based line.
Action
Create invoiceCreates a new invoice for a customer with a single line item.
Action
Create item (product/service)Creates a new product or service item.
Action
Create journal entryCreate a QuickBooks journal entry with balanced debit and credit lines against the chart of accounts.
Action
Create paymentRecords a customer payment, optionally applied against a specific invoice.
Action
Create refund receiptCreates a new refund receipt for a customer with a single line item.
Action
Create sales receiptCreates a new sales receipt for a customer with a single line item.
Action
Create vendorCreates a new vendor in QuickBooks Online.
Action
Delete billPermanently delete a QuickBooks bill by Id.
Action
Delete credit memoPermanently delete a QuickBooks credit memo by Id.
Action
Delete estimatePermanently delete a QuickBooks estimate by Id.
Action
Delete invoicePermanently delete a QuickBooks invoice by Id. Unlike voiding, this removes the transaction entirely.
Action
Delete sales receiptPermanently delete a QuickBooks sales receipt by Id.
Action
Find account by nameLook up an account in the QuickBooks chart of accounts by its name.
Action
Find customer by nameSearches for a customer by display name and returns its Id and SyncToken.
Action
Find invoice by numberLook up a QuickBooks invoice by its document number (the invoice number customers see) rather than its internal Id.
Action
Find item by nameLook up a QuickBooks product or service item by its name.
Action
Find vendor by nameLook up a QuickBooks Online vendor by display name.
Action
Get bill balanceReturns the outstanding balance for a bill by its Id.
Action
Get customer by IDRetrieves a single customer by its Id.
Action
Get estimate by IDRetrieve a QuickBooks Online estimate by its ID.
Action
Get estimate PDFDownload the rendered PDF of a QuickBooks estimate by Id.
Action
Get invoice by IDRetrieves a single invoice by its Id, including its balance.
Action
Get invoice PDFDownload the rendered PDF of a QuickBooks invoice by Id, for emailing or archiving.
Action
List accountsList the accounts in the QuickBooks chart of accounts, with their type, detail type, and current balance.
Action
List attachmentsList the files attached to a QuickBooks transaction or record, with their download links.
Action
List employeesList employees recorded in QuickBooks Online.
Action
List itemsList products and services (items) defined in QuickBooks Online.
Action
Pay billRecords a bill payment against a vendor bill, paid from the specified bank/credit-card account.
Action
Run queryRuns an arbitrary read-only QuickBooks Online query (QBO SQL-like syntax) and returns the raw QueryResponse.
Action
Send estimateEmail a QuickBooks Online estimate to the customer.
Action
Send invoiceEmails an invoice to the supplied email address (or the invoice's billing email if omitted).
Action
Update customerUpdates an existing customer (sparse update). Requires the customer Id and current SyncToken.
Action
Update estimateUpdate an existing QuickBooks estimate by Id, changing only the fields supplied.
Action
Update invoiceUpdate an existing QuickBooks invoice by Id — a sparse update that changes only the fields supplied and leaves the rest of the invoice intact.
Action
Update itemUpdate an existing QuickBooks product or service item by Id — name, description, price, income account, or active flag.
Action
Update vendorUpdate an existing QuickBooks vendor by Id — contact details, billing address, terms, or active flag.
Action
Upload attachmentUpload a file to QuickBooks and attach it to a transaction or record — a receipt on an expense, a contract on an invoice.
Action
Void invoiceVoids an existing invoice. Requires the invoice Id and current SyncToken.
Action
Void paymentVoids an existing customer payment. Requires the payment Id and current SyncToken.
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
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Questions
Google Calendar and QuickBooks Online, answered
Can billing follow what actually happened on the calendar?
Yes. A created, updated or cancelled Google Calendar event can look up the customer in QuickBooks Online and then create, update or void the invoice that matches it. You can also patch the calendar event afterwards so the invoice number sits on the booking.
What can QuickBooks Online put on the calendar?
Triggers such as a new invoice, new bill or new estimate can create a Google Calendar event or quick add one from plain text, for example a due date or a follow-up call. The event is made on whichever calendar you point the action at.
What can start an automation from Google Calendar?
Any of Google Calendar's 6 triggers in the catalog, including Event Canceled or Deleted, Event Created, Event Updated and Attendee Response Changed. Describe the moment in plain language and your agent picks the right one.
What can your agent do in QuickBooks Online when something happens in Google Calendar?
Any of QuickBooks Online's 45 actions, including Find customer by name, Update invoice, Void invoice and Create account. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from QuickBooks Online to Google Calendar?
Yes. When something happens in QuickBooks Online, your agent can act in Google Calendar too. This page covers both directions: QuickBooks Online's triggers and Google Calendar's actions are listed here as well.
Do I have to build a connector for Google Calendar or QuickBooks Online?
No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running.
Can my AI client use Google Calendar and QuickBooks Online without building an automation?
Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both.
What happens when something fails?
Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.
Is there a free plan?
Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.