patch
{protocol}://{base-url}/integration/v2/custom_field//
This endpoint can be used to update specific fields of a Custom Field. Only the fields specified in the request body will be updated: name_plural, name_singular, add_options, remove_options, tooltip_text, backref_name, and backref_tooltip_text. Use add_options to append new options to PICKER/MULTI_PICKER fields, or remove_options to remove existing options. Both can be used in the same request, but the same option cannot appear in both add_options and remove_options arrays. Other fields cannot be modified through this endpoint.