Can't reserve or release work because processes are currently being used

Symptoms

While working with discrete manufacturing, you receive the following error:

Warehouse management processes are currently being used. If work lines are not yet registered, you can cancel the created work and any load or shipment lines, and then continue with the picking or shipping process.

Cause

This issue occurs if you try to reserve or release work for a line, but the inventory transaction has a status of Picked, which indicates that the material has been picked.

Resolution

To fix this issue, follow one of these steps.

• Change the status of the production order back to Estimated or Released.
• Open the details page for the relevant production order. On the Action Pane, on the Warehouse tab, in the Stop group, select Stop and unpick to unpick all picked transactions. Then select Remove stop to process the production order.

Here is an explanation of the Unpick and Stop functions:

• Unpick – This function reverses the status of inventory transactions for bill of materials (BOM) lines and formula lines that have a status from Picked through On order. When work for raw material picking is completed, the status of the lines is set to Picked. This status prevents the production order from being reset to Created status. In this case, you can use the Unpick function to revert the transactions from Picked status and then reset the production order to Created status.
• Stop – This function sets a Stopped flag on the production order to prevent any status update on the order. You can find the Stopped flag on the Warehouse FastTab of the production order details page.

Note

• The buttons are visible only when the production order is created for items that are enabled for warehouse processes.
• The Stop group is visible only on the Warehouse tab on the Action Pane of the production order details page. It isn't visible on the Warehouse FastTab of the Production orders list page.