Step 1
1. Comparing the product tree version of unit, product and workorder check whether either of them is up to date or are the same.
Figure below show the unit status of the unit, highlighted red box is product tree.
Figure below show the product tree of the product, highlighted with product tree version.
Figure below show the workorder information, highlighted with product tree version
FOR RMA/REWORK Work Order
This may cause the association tab to not popup