How To Fix ESH_ADAPT_MSG051 - Character &1 is not allowed at position 1 in RFC destination name

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_ADAPT_MSG - Adapter Messages

• Message number: 051

• Message text: Character &1 is not allowed at position 1 in RFC destination name

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_ADAPT_MSG051 - Character &1 is not allowed at position 1 in RFC destination name ?

  The SAP error message ESH_ADAPT_MSG051 indicates that there is an issue with the naming convention of an RFC (Remote Function Call) destination. Specifically, the error states that a character at position 1 in the RFC destination name is not allowed. This typically means that the name of the RFC destination does not conform to the naming rules set by SAP.
  Cause:
  
  Invalid Characters: The RFC destination name may contain invalid characters. According to SAP naming conventions, RFC destination names should only include alphanumeric characters (A-Z, 0-9) and underscores (_). Special characters, spaces, or starting with a number can lead to this error.
  Incorrect Naming Convention: The name might not follow the required format, such as starting with a letter or underscore.
  Configuration Issues: There may be a misconfiguration in the system where the RFC destination is defined.
  
  Solution:
  
  
  Check RFC Destination Name: Review the name of the RFC destination that is causing the error. Ensure it adheres to the following rules:
  
  Must start with a letter or underscore.
  Can only contain letters, numbers, and underscores.
  Should not contain spaces or special characters.
  
  
  
  Rename the RFC Destination: If the name is invalid, rename the RFC destination to a valid name that follows the above rules. You can do this in the SAP GUI:
  
  Go to transaction SM59 (RFC Destinations).
  Find the destination in question and modify its name to comply with the naming conventions.
  
  
  
  Test the RFC Connection: After renaming, test the RFC connection to ensure it works correctly. You can do this in the same transaction (SM59) by selecting the destination and clicking on the "Connection Test" button.
  
  
  Check for Dependencies: If the RFC destination is used in other configurations or programs, ensure that those references are updated to reflect the new name.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for RFC destinations for more details on naming conventions and best practices.
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or solutions related to this error message.
  Community Forums: Consider searching or posting in SAP community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the error message ESH_ADAPT_MSG051 and ensure that your RFC destination is correctly configured.