Getting error as Planner code invalid while doing org assignment for existing items

Hi

We have 4000 items in system. Now two new inventory orgs are created and we are assigning these two new orgs to the existing items through FBDI and manually. But we are getting one error as Planner code is invalid. However, we have defined planner attribute at the master level. And planner code is also what exist in planners task, but this error popup.

Please suggest