How To Fix MEPO105 - An error occured when numbering the items

SAP Error Message - Details

• Message type: E = Error

• Message class: MEPO - New Purchase Order Dialog

• Message number: 105

• Message text: An error occured when numbering the items

What causes this issue?

When numbering the items, the item number &V1& was assigned more than
once. This will cause errors.
The purchase order processing is canceled.

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

System Response

How to fix this error?

This error can be caused by the following situation:
You create a purchase order using BAPI_PO_CREATE1 or ME21N.
The items transferred are numbered in the first steps, or you have set
an item interval of 1 for the used document type in Customizing
(transaction OMEC).
During processing, one of the items is exploded into a main item with
subitems, whereby the subitems receive item numbers that have already
been assigned.
SAP recommends numbering the items in bundles of ten, or setting the
item interval to 10 in Customizing.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MEPO105 - An error occured when numbering the items ?

  The SAP error message MEPO105, which states "An error occurred when numbering the items," typically occurs in the context of creating or processing purchase orders or contracts in the SAP system. This error can arise due to various reasons, and here are some common causes, potential solutions, and related information:
  Causes:
  
  Number Range Issues: The number range for the document type you are trying to create may not be properly defined or may be exhausted.
  Authorization Issues: The user may not have the necessary authorizations to create or modify the document.
  Configuration Errors: There may be configuration issues in the document type settings or number range settings in the SAP system.
  System Errors: Temporary system issues or inconsistencies in the database can also lead to this error.
  
  Solutions:
  
  
  Check Number Ranges:
  
  Go to transaction code SNRO (Number Range Objects) and check the number range for the relevant document type (e.g., purchase order, contract).
  Ensure that the number range is defined and that there are available numbers. If the range is exhausted, you may need to extend it.
  
  
  
  Review Authorizations:
  
  Ensure that the user has the necessary authorizations to create or modify the document. This can be checked in transaction code SU53 after the error occurs.
  
  
  
  Configuration Review:
  
  Check the configuration settings for the document type in transaction code SPRO. Navigate to the relevant section for purchasing and ensure that the settings are correct.
  
  
  
  System Check:
  
  If the issue persists, check for any system errors or inconsistencies. You may need to consult with your SAP Basis team to perform a system check or to look for any relevant logs.
  
  
  
  Recreate the Document:
  
  Sometimes, simply trying to recreate the document can resolve the issue, especially if it was a temporary glitch.
  
  
  
  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 available that resolve the issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like ME21N (Create Purchase Order), ME31K (Create Contract), and SNRO (Number Range Objects) for troubleshooting.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Documentation: Review SAP documentation related to purchasing and number range management for a deeper understanding of the configuration and processes involved.
  
  If the problem persists after trying the above solutions, it may be necessary to escalate the issue to your SAP support team or consult with SAP directly for further assistance.