Sales order postings with discounts

Error message:-account number is transaction type Customer invoice discount does not exist.

Go to General ledger module. Go The Setup tab and locate Posting group there. Expand that tab and then click on the account for automatic posting. In this form, you can define certain posting account and sales invoice discount are defined there only. Check whether record exists for customer invoice discount or not.

If that exists, define ledger account there and if the record was not there then create a new record and attach the ledger.

Sales order postings with discounts