How To Fix /SAPAPO/MAT148 - Character '&1' not allowed as separator

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MAT -

• Message number: 148

• Message text: Character '&1' not allowed as separator

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/MAT148 - Character '&1' not allowed as separator ?

  The SAP error message /SAPAPO/MAT148 Character '&1' not allowed as separator typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with the format of a string that is being processed. This error indicates that a character being used as a separator in a string is not permitted.
  Cause:
  
  Invalid Separator Character: The character represented by &1 in the error message is not recognized as a valid separator in the context where it is being used. This could happen when importing data, configuring settings, or processing input where specific characters are expected as separators (e.g., commas, semicolons).
  Data Format Issues: The data being processed may not conform to the expected format, leading to the use of invalid characters.
  Configuration Errors: There may be a misconfiguration in the settings that define valid separators for certain operations.
  
  Solution:
  
  Identify the Character: Check the specific character that is causing the issue. The error message will typically replace &1 with the actual character that is not allowed.
  Review Input Data: Look at the data being processed when the error occurs. Ensure that the separators used are valid according to the SAP APO requirements.
  Modify the Data: If you find that an invalid character is being used as a separator, replace it with a valid one (e.g., use a comma or semicolon if those are acceptable).
  Check Configuration Settings: Review the configuration settings related to the data processing or import/export functions to ensure that they are set up correctly and that valid separators are defined.
  Consult Documentation: Refer to SAP documentation or help resources for the specific transaction or function you are using to understand the expected format and valid characters.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: If this error occurs during a specific transaction, note the transaction code and search for related documentation or community discussions.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.