How To Fix MCEX191 - There is already an entry for the data entered

SAP Error Message - Details

• Message type: E = Error

• Message class: MCEX - Extraction Interface LIS/BW

• Message number: 191

• Message text: There is already an entry for the data entered

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MCEX191 - There is already an entry for the data entered ?

  The SAP error message MCEX191 ("There is already an entry for the data entered") typically occurs in the context of material master data or inventory management when you attempt to create or modify a record that already exists in the system. This error can arise in various scenarios, such as when entering data in transaction codes related to material management, inventory, or other related modules.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Duplicate Entry: You are trying to create a new entry (e.g., a material, batch, or inventory record) that already exists in the system.
  Incorrect Data Entry: The data you are entering may match an existing record in a way that violates uniqueness constraints.
  Configuration Issues: There may be configuration settings in the system that enforce unique entries for certain fields.
  
  Solution:
  To resolve the MCEX191 error, you can take the following steps:
  
  
  Check Existing Records:
  
  Verify if the entry you are trying to create already exists. Use transaction codes like MM03 (Display Material) or MB52 (List Warehouse Stocks on Hand) to check for existing records.
  
  
  
  Modify Existing Entry:
  
  If the entry already exists, consider modifying the existing record instead of creating a new one. Use the appropriate transaction code to make the necessary changes.
  
  
  
  Review Input Data:
  
  Double-check the data you are entering for typos or incorrect values. Ensure that all required fields are filled out correctly and that there are no duplicates in the data you are trying to enter.
  
  
  
  Consult with Configuration:
  
  If you suspect that the error is due to configuration settings, consult with your SAP Basis or configuration team to review the settings related to the specific module you are working with.
  
  
  
  Error Logs:
  
  Check the system logs or error logs for more detailed information about the error. This can provide insights into what specific data is causing the conflict.
  
  
  
  SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message. There may be patches or updates that resolve known issues.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material).
  Data Consistency: Ensure that your data entry processes are consistent and that users are trained to avoid duplicate entries.
  User Authorization: Ensure that users have the appropriate authorizations to create or modify records in the system.
  
  If the issue persists after following these steps, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.