How To Fix MW134 - Error: invalid line

SAP Error Message - Details

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 134

• Message text: Error: invalid line

What causes this issue?

Line not found in internal table.

System Response

A program error occurred and a line was not found.

How to fix this error?

Inform your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MW134 - Error: invalid line ?

  The SAP error message MW134 ("Error: invalid line") typically occurs in the context of inventory management or material document processing. This error indicates that there is an issue with the line item in a material document, which could be due to various reasons such as incorrect data entry, missing information, or inconsistencies in the document.
  Causes of MW134 Error
  
  Incorrect Material Number: The material number entered may not exist in the system or may not be valid for the transaction being performed.
  Missing or Incorrect Quantity: The quantity specified for the line item may be missing or not matching the expected format.
  Invalid Plant or Storage Location: The plant or storage location associated with the material may not be valid or may not exist.
  Document Status: The document may be in a status that does not allow further processing (e.g., already posted or blocked).
  Data Inconsistencies: There may be inconsistencies in the data related to the material, such as missing master data or configuration issues.
  
  Solutions to MW134 Error
  
  Check Material Number: Verify that the material number entered is correct and exists in the system. You can do this by using transaction codes like MM03 (Display Material) to check the material master data.
  Review Line Item Details: Ensure that all required fields for the line item are filled out correctly, including quantity, unit of measure, and any other relevant information.
  Validate Plant and Storage Location: Confirm that the plant and storage location are valid and correctly configured in the system.
  Check Document Status: Look at the status of the document you are trying to process. If it is already posted or in a blocked status, you may need to reverse or unlock it before making changes.
  Consult with IT or SAP Support: If the issue persists, it may be necessary to consult with your IT department or SAP support team to investigate further, especially if there are underlying data inconsistencies.
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  MB1A: Goods Withdrawal
  MB1B: Transfer Posting
  MB1C: Other Goods Receipts
  MIGO: Goods Movement
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the MW134 error.
  User Documentation: Review user manuals or documentation for guidance on proper data entry and processing procedures.
  
  By following these steps, you should be able to identify and resolve the MW134 error in SAP.