Monday CRM added two API mutations in version 2026-10 that set board roles for many users or teams in one call. update_users_board_role handles up to 200 user IDs, and update_teams_board_role handles up to 50 team IDs. Both require the boards:write scope.

The users or teams must already be subscribed to the board. Developers can subscribe them first with add_users_to_board or add_teams_to_board. The mutations change a role; they do not grant access.

Roles are editor, contributor or viewer. Only update_users_board_role accepts member, and only for agent users. assigned_contributor is not supported yet.

Each call returns successful IDs and a failure list with an error message for each ID.