How To Fix LT040 - Format may only contain the characters C, N, and A

SAP Error Message - Details

• Message type: E = Error

• Message class: LT - LE-WM: View or Table Maintenance Error Messages

• Message number: 040

• Message text: Format may only contain the characters C, N, and A

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message LT040 - Format may only contain the characters C, N, and A ?

  The SAP error message LT040, which states "Format may only contain the characters C, N, and A," typically occurs in the context of logistics and warehouse management, particularly when dealing with the handling of formats for storage bins, handling units, or other related objects.
  Cause:
  The error is triggered when an invalid format is used in a field that is expected to contain specific characters. In this case, the format is restricted to the characters:
  
  C: Character type
  N: Numeric type
  A: Alphanumeric type
  
  If the format string contains any characters outside of these specified ones, the system will raise this error.
  Solution:
  To resolve the LT040 error, you should:
  
  
  Check the Format Definition: Review the format definition in the relevant configuration settings. Ensure that the format string only includes the characters C, N, and A.
  
  
  Correct the Input: If you are entering data manually, ensure that the input adheres to the expected format. Remove any invalid characters.
  
  
  Review Custom Code: If there is any custom code or enhancements that manipulate formats, review that code to ensure it complies with the character restrictions.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on format definitions in the context you are working with (e.g., storage bin formats, handling unit formats).
  
  
  Testing: After making corrections, test the changes in a development or quality assurance environment before applying them to production.
  
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using transaction codes like LT01 (Create Transfer Order), LT10 (Transfer Order Confirmation), or others related to warehouse management.
  SAP Notes: Check for any relevant SAP Notes that might address this error or provide additional context or fixes.
  User Exits and BAdIs: If you are using user exits or Business Add-Ins (BAdIs) that affect the handling of formats, ensure they are correctly implemented.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.