One of our customers is having a problem while receiving incoming payments through F-28. The error shown is that 'Tax code XS is either deleted or incorrectly changed'. The scenario is that he creates a debit memo against a debit memo request and subsequently generates the accounting document. The debit memo basically contains service charges against providing repair service and the entire process is non taxable. However the same contains condition types for service tax, Ecess & Secess without any value. Therefore the debit memo only captures the net value. I have checked with the condition records maintained but everything seems to be OK.
Please provide some suggestions for solving the same.