Unable to enter an Item in Sales Order, displaying error as 'This item is not in the main order:'
Dear Team,
When I am trying to enter a sales order, there is a message appearing as below
Unable to enter an Item in Sales Order, displaying error as 'This item is not in the main order: for this customer PO number'.
And the screen is not allowing me to save and proceed.
Kindly advise.
Thanks.