Question: - If we try to Assign a Batch# to a Pick or Invoice which already has a Batch#, it throws the below error.
Solution - Select the Pick Tickets or Invoices for which batch# has to be re-assigned and Right click on the Assign Batch#. This will remove the Batch# that's already been assigned to the Pick or Invoice. Now again left click on the Assign Batch#, this will re-assign with the new Batch#.