Hello,As coversed with Mr. Ayush Modi, the issue has been resolved and hence he has asked to mark the idea as UTI.-Product Team (SA)
Change or modification of Basic Value is not as per present system behavior. If required changes can be done in Item Rate or Quantity which determines the Basic Value for the item.
In case of further requirement, please share the details of business use case where changes in gross value is required directly.
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