Thank you @Jaroslaw highlighting very important issue for handling batch tracked items at Dynamics Moder Point of Sales (MPOS) for Retail businesses. I would second the proposed solution and case statement you have provided in the idea above.

https://learn.microsoft.com/en-us/dynamics365/commerce/batch

In my view point...

“This is not good for MS to provide an ad-hoc solution to its customers for batch tracked item. In order to deal with Retailers using batch enabled items at MPOS, the solution should be complete in all possible aspects. Presently Retail Sales posting process is not working correctly for both sales scenarios that you have correctly documented in your email. I also hope MS team should also understands the quantum of issue from retail business perspective that is using batch enabled items. The volume of issues in retail would be quite high and it’s not possible either for MS Partner/MS Support team to support customer to keep customers business running and neither customer’s ERP/ operations team can be held responsible to clear batch related errors for return sales manually or manage new/unnecessary batch numbers created by retail statement posting process in D365FO. The D365FO application design should be fixed to match with requirements/scenarios of batch enabled items handling just like it does for back office operations.“

I would also encourage others from the industry to vote your idea..

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