I am using in AX 2012 R2
Consider that in sales line we have qty 15000.
Now i am updating Sales qty ans sales price in sales line table from my customized button in prodtable form.
Qty , sales price and net amount is updating properly but if we go to invent transactions for that sales order still showing old records.
Updating quantity on sales line should also update InventTrans. Look at salesLine.update() method.
What is your code to update the sales line quantity?