How To Fix M1043 - Not valid to use different item types

M1043 - Overview

• Message type: E = Error

• Message class: M1 - Internal RW Documents

• Message number: 043

• Message text: Not valid to use different item types

What causes this issue?

In a payment transfer, you have entered both revenue and expenditure
commitment items. This is not permitted.

System Response

You cannot save the payment transfer.

How to fix this error?

Use only commitment items of the same type.

Error message extract from SAP system. Copyright SAP SE.

M1043 - Details

• The SAP error message M1043, which states "Not valid to use different item types," typically occurs in the context of materials management and inventory management processes. This error arises when there is an attempt to process a transaction that involves different item categories or types that are not compatible with each other.
  
  Cause:
  The error is usually triggered in scenarios such as:
  
  Mixed Item Types: You are trying to create a document (like a purchase order, sales order, or goods movement) that includes items of different types (e.g., stock items, non-stock items, service items).
  Inconsistent Item Categories: The system does not allow mixing item categories that have different characteristics or processing rules.
  
  Configuration Issues: There may be configuration settings in the material master or document type that restrict the combination of item types.
  
  
  Solution:
  To resolve the M1043 error, consider the following steps:
  
  
  Check Item Types: Review the items you are trying to process. Ensure that all items