Wrong Inventory Posted

Hi,

Purchase Order posted for 108 Qty @ 50 unit rate for excisable material.

Wrong "Items Per Purchasing Unit" assigned as 200 under Purchasing Data in the item master data.

Now stock is 21600 Nos instead of 108 Nos. Can't post A/P Credit Memo as full Payment is made against invoice.

PO -> GRPO -> Incoming Ex Invoice -> A/P Invoice -> Outgoing Payment have two line items of which one is incorrect mentioned above.

Thanking you in advance.

Regards,

Subodh