Changes the base type for a batch of tasks. This operation will remove the task from the lists it is in. If the task is a parent task, all subtasks are changed as well. If the task has task dependencies to tasks not in the given list of task ids, those will be removed as well. If the task baseType is already the correct base type, no changes are made. The status of the task is matched automatically to the first status of the new basetype based on order and type.
write permissions on the project-planning-data feature are required. For a user’s private task, no special permissions are required.204 NoContent if all tasks have been changed successfully. Returns 207 MultiStatus if at least one task could not be changed, including the reasons.