How To Fix MPN01054 - External manufacturer contains characters that are not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: MPN01 - MPN Message: Material Master / customizing

• Message number: 054

• Message text: External manufacturer contains characters that are not allowed

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 MPN01054 - External manufacturer contains characters that are not allowed ?

  The SAP error message MPN01054 indicates that there are invalid characters in the external manufacturer's name or code. This error typically arises when the data being entered or processed contains special characters or symbols that are not permitted by the system's configuration or data validation rules.
  Cause:
  
  Invalid Characters: The external manufacturer name may contain characters such as special symbols, punctuation, or spaces that are not allowed.
  Data Entry Errors: Mistakes during manual data entry can lead to the inclusion of invalid characters.
  Data Import Issues: If data is being imported from an external source, the source data may contain invalid characters.
  Configuration Settings: The system may have specific settings that restrict certain characters in manufacturer names.
  
  Solution:
  
  
  Review the Manufacturer Name: Check the external manufacturer's name for any invalid characters. Common invalid characters include:
  
  Special symbols (e.g., @, #, $, %, &, *, etc.)
  Leading or trailing spaces
  Non-printable characters
  
  
  
  Correct the Data: Remove or replace any invalid characters with acceptable ones. Ensure that the name adheres to the allowed character set defined by your SAP system.
  
  
  Use Standard Naming Conventions: Follow any naming conventions or guidelines provided by your organization or SAP documentation to ensure compliance.
  
  
  Data Validation: Implement data validation checks before entering or importing data into the system to catch errors early.
  
  
  Consult Documentation: Refer to SAP documentation or your organization's data governance policies for specific character restrictions related to external manufacturers.
  
  
  Test Changes: After making corrections, test the changes in a development or test environment before applying them to the production system.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes or Knowledge Base Articles that may provide additional insights or updates regarding this error.
  Transaction Codes: Familiarize yourself with relevant transaction codes (e.g., MM01 for material creation) where this error might occur.
  User Roles and Permissions: Ensure that users have the appropriate roles and permissions to make changes to manufacturer data.
  Data Migration Tools: If using data migration tools, ensure that they are configured correctly to handle character validation.
  
  By addressing the invalid characters and ensuring compliance with SAP's data entry standards, you should be able to resolve the MPN01054 error.