How To Fix ME790 - Material number & differs from that of ordered material &

ME790 - Overview

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 790

• Message text: Material number & differs from that of ordered material &

What causes this issue?

The acknowledgment/confirmation for purchase order no. &V3& with item
&V4& cannot be adopted because the customer material number &V1& from
the IDOC differs from the material number &V2& from the PO.

How to fix this error?

Either change the customer material number in the IDOC or get the
supplier to send a new acknowledgment/confirmation with the correct
material number.

Error message extract from SAP system. Copyright SAP SE.

ME790 - Details

• The SAP error message ME790 indicates that there is a discrepancy between the material number in the purchase order (PO) and the material number in the goods receipt or invoice verification process. This error typically arises during the processing of a purchase order when the system detects that the material number being processed does not match the material number that was originally ordered.
  
  Cause:
  
  Incorrect Material Number: The material number entered during the goods receipt or invoice verification does not match the material number in the purchase order.
  Copying Errors: If the PO was copied from another document, there may have been an error in the copying process.
  Changes in Material Master: If the material master data was changed after the PO was created, it could lead to discrepancies.
  Different Units of Measure: If the material is defined with different units of measure, it may cause confusion in the system.
  Manual Entry Errors: Manual entry of