You can add multiple labels to a thread with a call to addLabels. Label type IDs passed to this endpoint should not be archived, we return a validation error with code cannot_add_label_using_archived_label_type for any which are submitted.

If a label type you provide is already added to the thread we will return a validation error with code label_with_given_type_already_added_to_thread.

You can retrieve label type IDs in the Plain UI settings by hovering over a label type and selecting ‘Copy label ID’ from the overflow menu.

This operation requires the following permissions:

  • label:create

This will output:

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OverviewRemove labels