> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://contentful.com/developers/docs/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://contentful.com/developers/docs/_mcp/server.

Calls to trigger actions are always mediated by Contenful. You can read the [the previous section](/references/content-management-api/app-actions) to understand why.

### Errors

* `403 - Forbidden` - This error is returned if the caller is not an installed app, or if the calling app is shared.
* `404 - NotFound` - This error is returned if the action does not exist or the provider app is not installed in the current space-environment.
* `409 - Conflict` - This error is returned if the provider has a missing or invalid signing secret.

## App Action call

[Trigger an action](/references/content-management-api/app-action-calls/trigger-an-action)

## App Action call

[Get a call](/references/content-management-api/app-action-calls/get-a-call)

## App Action call response

[Get raw response](/references/content-management-api/app-action-calls/get-raw-response)