Please give me the solution on below mention issue
My ware house stock = 100
User has posted a PID with 40.
My stock became 40.
after some days Now user came to know that he has enterd a wrong quantity 40 instead of 50.
In this case I know that we can not reverse PID where it is posted, but how can I reversal of the quantity of exact 40, If I do the PID once again with 50 quantities my stock will become 50 and my recent reciepts will go. for this reason I want to post the reversal of 40 and make it as 50.
Please give me step by step solution since I'm new to MM module.
Thanks in Advance....