How To Fix MK002 - Internal posting error: several materials, but no generic material

SAP Error Message - Details

• Message type: E = Error

• Message class: MK - Mass Handling in the Material Master

• Message number: 002

• Message text: Internal posting error: several materials, but no generic material

What causes this issue?

INCLUDE ERROR OBJECT DOKU ID TX LANGUAGE EN

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

INCLUDE ERROR1 OBJECT DOKU ID TX LANGUAGE EN

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MK002 - Internal posting error: several materials, but no generic material ?

  The SAP error message MK002 ("Internal posting error: several materials, but no generic material") typically occurs during the processing of a material document, particularly in the context of inventory management or material movements. This error indicates that there are multiple materials involved in a transaction, but the system is unable to identify a generic material that can be used for the posting.
  Causes:
  
  Multiple Materials: The transaction involves multiple materials, and the system expects a generic material to be defined for the posting.
  Material Master Data Issues: There may be inconsistencies or missing data in the material master records, such as missing generic material assignments.
  Configuration Issues: The configuration settings in the system may not be set up correctly to handle the specific materials involved in the transaction.
  Batch Management: If batch management is enabled, the system may require a generic material for batch-related postings.
  
  Solutions:
  
  
  Check Material Master Data:
  
  Verify that all materials involved in the transaction have been correctly set up in the material master.
  Ensure that the materials are assigned to the correct material type and that any necessary generic materials are defined.
  
  
  
  Review Transaction Details:
  
  Check the details of the transaction that triggered the error. Ensure that the materials being posted are appropriate and that there are no discrepancies.
  
  
  
  Configuration Review:
  
  Review the configuration settings in the SAP system related to material postings. Ensure that the settings allow for the posting of multiple materials and that generic materials are defined where necessary.
  
  
  
  Batch Management Settings:
  
  If batch management is in use, ensure that the relevant batches are correctly assigned to the materials and that the system can identify a generic material for the posting.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues related to this error message.
  
  
  
  Testing:
  
  After making any changes, perform test transactions to ensure that the error no longer occurs and that the system behaves as expected.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MB1A (Goods Withdrawal), MB1B (Transfer Posting), and MB1C (Other Goods Receipts) that may be involved in the posting process.
  Material Types: Understand the different material types in SAP and how they relate to postings and inventory management.
  SAP Documentation: Refer to SAP documentation and help resources for detailed explanations of material management processes and error handling.
  
  If the issue persists after following these steps, it may be beneficial to engage with your SAP support team or consult with an SAP expert for further assistance.