Initial document was posted with Planning level and planning date in the customer line item,
But after that user has manualy updated the invoice reference number in the customer line item.
Once the invoice refernce number was updated the planning level and planning date got deleted by system.
As the planning level is not editable now the user is not able to update the planning level and date in the line item.
Kindly suggest how to update the planning level and date to the line item?
Is it possible?
What is the relationship between Planning level and invoice reference number.