Deprecation Notice: POST /contacts/batch
Deprecation Notice: POST /contacts/batch
Effective: 30 October 2026
The Update Multiple Contacts endpoint (POST /contacts/batch) will be deprecated on 30 October 2026. This endpoint is being replaced by the newer and more scalable POST /v3/contacts/import API.
What you need to do
- Migrate all bulk-update operations to
/v3/contacts/import. - The deprecated endpoint may stop functioning after the deprecation date.
Why this change?
- Improved performance and scalability
- More consistent validation and error handling
- Supports larger and asynchronous contact imports
