When you edit Production Order 9999 where 9999 represents Production order ID with In Preparation Status and Add Row in Input Products you receive error message Execution of Action Not Possible at the Moment.
Reproducing the Issue
1. Go to Production Control workcenter and Production Orders view.
2. Show All Production Orders and Find Production Order 9999 with In Preparation status.
3. Edit the Production Order 9999 and View All.
4. Go to Order Structure and Element ID
5. Go to Input Products sub tab and Add Row.
You will encounter the above error.
This exception is raised from backend to notify that there is blank entry in the Product ID in the new line which gets added when we click on Add Row.
Enter a valid Product ID Productxyz.
After this, exception will dissapear and you can proceed to release Production Order.
Production Order, Input Products, In Preparation, Add Row, Product ID. , KBA , AP-PE , Production , Product Enhancement