List or filter all Custom Activity instances
Custom Fields appear in the format: `custom.{custom_field_id}`. See [Custom Fields](https://developer.close.com/api/resources/custom-fields/custom-fields-activity).
If you're filtering by `custom_activity_type_id` or `custom_activity_type_id__in` parameter, the `lead_id` parameter will be required as well. If you want to retrieve all Custom Activity instances of a specific type regardless of the lead, you will need to get leads that contain such an activity type using [Advanced Filtering](https://developer.close.com/api/resources/advanced-filtering) and provide those Lead IDs one at a time to this endpoint.
Authentication
AuthorizationBasic
Use your API key as the username and leave the password empty.
OR
AuthorizationBearer
Bearer authentication of the form Bearer <token>, where token is your auth token.
Query parameters
_limit
Number of results to return.
_skip
Number of results to skip before returning, for pagination.
id__in
Filter by activity IDs (comma-separated)
lead_id
Filter by lead IDs (comma-separated)
contact_id
Filter by contact IDs (comma-separated)
user_id
Filter by user IDs (comma-separated)
organization_id
_type
Filter by activity type, e.g. Call (comma-separated)
date_created__gte
date_created__lte
date_created__gt
date_created__lt
activity_at__gte
activity_at__lte
activity_at__gt
activity_at__lt
custom_activity_type_id
custom_activity_type_id__in
Response
Successful response
Errors
400
Bad Request Error
401
Unauthorized Error
404
Not Found Error