Error "1:N Fetch Mode is not allowed on Datasource having join condition with node other than its immediate parent" in Ax 2012

Error:
If you are facing following error on reservation of item in Sales Line in Sales order or any other order.

"1:N Fetch Mode is not allowed on Datasource having join condition with node other than its immediate parent."

"Field 'Dimension No.' must be filled in."

Then you can try following solution:

Solution:

You can install  this hot fix: KB Article Number(s): 2922779. For Axapta 2012 R2 CU 7

You can download hotfix from Microsoft partner source site.