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

MPN01054 - Overview

• 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

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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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MPN01054 - Details

• 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