How To Fix M8303 - Material & & & already included in document (line &)

SAP Error Message - Details

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 303

• Message text: Material & & & already included in document (line &)

What causes this issue?

You have already processed this material/plant combination under
another item.

How to fix this error?

Correct your input.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M8303 - Material & & & already included in document (line &) ?

  The SAP error message M8303 typically indicates that a material has already been included in a document, which can occur in various contexts such as inventory management, purchasing, or sales. This error is often encountered when trying to add a material to a document (like a purchase order, sales order, or inventory transfer) that has already been referenced in that document.
  Cause:
  
  Duplicate Entry: The material you are trying to add is already listed in the document.
  Document Status: The document may be in a status that does not allow for changes or additions.
  Configuration Issues: There may be specific settings in the system that prevent the addition of duplicate materials.
  
  Solution:
  
  Check Document: Review the document to confirm if the material is already included. If it is, you may not need to add it again.
  Remove Duplicate: If you find that the material is listed more than once and this is not intended, remove the duplicate entry.
  Change Document Status: If the document is locked or in a status that prevents changes, you may need to change its status or unlock it, if appropriate.
  Consult Configuration: If this issue persists, consult with your SAP administrator or support team to check if there are any specific configurations or validations that need to be adjusted.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using different transaction codes (e.g., ME21N for purchase orders, VA01 for sales orders).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Refer to SAP documentation for the specific module you are working with (e.g., MM for Materials Management, SD for Sales and Distribution) for more detailed troubleshooting steps.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to your SAP support team for further assistance.