How To Fix C1310 - Only one "&" is allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 310

• Message text: Only one "&" is allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message C1310 - Only one "&" is allowed ?

  The SAP error message C1310, which states "Only one '&' is allowed," typically occurs in the context of SAP ABAP programming, particularly when dealing with string concatenation or formatting. This error indicates that there is an issue with the use of the ampersand (&) character in your code, which is often used for string formatting or variable substitution.
  Cause:
  
  Incorrect Use of Ampersand: The error usually arises when there are multiple ampersands used in a context where only one is allowed. For example, in string formatting or when using the CONCATENATE statement.
  Syntax Errors: It can also occur due to syntax errors in the code where the ampersand is misused.
  Dynamic Selection: If you are using dynamic selection or dynamic field names, the ampersand may be incorrectly placed.
  
  Solution:
  
  
  Check the Code: Review the line of code where the error occurs. Ensure that you are using only one ampersand for string concatenation or formatting.
  
  For example, if you have something like WRITE: / 'Value: ' && lv_value., it should be corrected to WRITE: / 'Value: ' && lv_value. (only one &).
  
  
  
  Correct Syntax: Make sure that the syntax is correct. If you are using string templates or concatenation, ensure that you are following the correct format.
  
  Example of correct usage: DATA(lv_result) = |Value: { lv_value }|.
  
  
  
  Debugging: If you are unsure where the error is coming from, use debugging tools to step through the code and identify the exact line causing the issue.
  
  
  Consult Documentation: If you are using specific functions or methods, refer to the SAP documentation for the correct usage of ampersands in those contexts.
  
  
  Related Information:
  
  ABAP Documentation: Review the official SAP ABAP documentation for guidelines on string handling and formatting.
  SAP Community: Engage with the SAP community forums for insights and similar issues faced by other developers.
  Error Handling: Implement error handling in your code to catch such issues early during development.
  
  By following these steps, you should be able to resolve the C1310 error and ensure that your code adheres to the correct syntax and usage of the ampersand character.