Custom API Action

Use the Custom API Action to make an authenticated custom API request to the Microsoft Graph REST API. See Microsoft Graph REST API.

Reauthorize your connection before using this card.


Field Definition Type Required

Request Type

These are the supported HTTP request methods, or HTTP verbs, in a custom API call (see HTTP request methods).

  • GET: Retrieves data from a web server based on parameters. This method requests a representation of the specified resource. If a request is successful, a 200 (OK) response message is returned with the requested content.

  • POST: Sends data to a web server based on parameters, for example, uploading a file. Multiple POST requests may result in a different outcome than a single POST. Exercise caution to avoid sending multiple POST requests unintentionally. If a request is successful, a 200 (OK) response message is returned.

  • PUT: Sends data to be stored at a specific location on a web server based on parameters, such as uploading a file. Unlike POST requests, PUT requests are idempotent. For successful requests, the result of a single PUT request is the same as many identical PUT requests. If a request is successful, a 200 (OK), 201 (Created), or 204 (No Content) response message is returned.

  • PATCH: Applies partial modifications to a resource on a web server based on parameters. PATCH isn't idempotent. Multiple PATCH requests could have unintended consequences. If a PATCH is successful, a 200 (OK) or 204 (No Content) response message is returned.

  • DELETE: Deletes the specified resource if it exists from the web server based on parameters. If a DELETE is successful, a 200 (OK) response message is returned.




Field Definition Type Required

Relative URL

The URL address of the web server that you're attempting to call. Specify the relative URL as /{insert_remaining_URL}. You can specify query parameters in the relative URL using "?", or specify the query parameters as an object key pair in the Query input.

For example, for the endpoint: then the relative URL is: /users.




Specify any headers required in addition to authorization or content-type.

For example: {"Content-Type":"application/json"}.




Specify any additional query parameters that should be included in object format (key value pairs).




Specify a request body in JSON format.




Field Definition Type


Status Code

Result of the operation. The connector returns an HTTP status code that indicates whether the action taken by the card succeeded or failed. For example:

  • A 201 Created status code indicates success where a new resource was created.
  • A 403 Forbidden error indicates that the HTTP request wasn't processed because the necessary permissions were missing.

For a full list of possible status codes, see HTTP status codes.



Detailed context for the status code, unrelated to the output body. Response headers depend on your selected HTTP request option. Not all headers are response headers. This is similar to {"Content-type":"application/json"}.



Data returned from your selected HTTP request.

For example, the data from a GET request.


Related topics

Office 365 Mail connector

Workflow elements

Guidance for Office 365 Mail connector

Microsoft Graph Rest API