How To Fix ED503 - '&' is not allowed in combination with '&-&'

SAP Error Message - Details

• Message type: E = Error

• Message class: ED - ABAP/4 Editor messages

• Message number: 503

• Message text: '&' is not allowed in combination with '&-&'

What causes this issue?

The combination of line commands entered is not allowed.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Delete the invalid line commands (overwrite with blanks) or delete all
the line commands, including the marked ones, using the line command
RESET.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ED503 - '&' is not allowed in combination with '&-&' ?

  The SAP error message ED503 indicates that there is an issue with the combination of characters used in a certain field, typically related to the use of special characters in a data entry or configuration context. The message suggests that the character '&' is not allowed in combination with another '&' character, which may be part of a specific syntax or format that SAP expects.
  Cause:
  
  Invalid Character Combination: The error usually arises when the input contains an invalid combination of special characters, particularly the ampersand (&). This can occur in various contexts, such as when defining text elements, variable names, or other identifiers in SAP.
  Field Restrictions: Certain fields in SAP have restrictions on the characters that can be used. The presence of '&' in a context where it is not permitted can trigger this error.
  
  Solution:
  
  Check Input Values: Review the input values where the error occurs. Ensure that you are not using '&' in a way that is not allowed. For example, if you are defining a variable or a text element, make sure that the syntax adheres to SAP's requirements.
  Remove or Replace Invalid Characters: If you find that '&' is being used incorrectly, consider removing it or replacing it with a valid character. Ensure that the new input complies with the expected format.
  Consult Documentation: Refer to SAP documentation or help resources for the specific transaction or module you are working with. This can provide insights into valid character combinations and formats.
  Testing: After making changes, test the input again to see if the error persists. If it does, double-check for any other invalid characters or combinations.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Community Forums: Engage with SAP community forums or user groups. Other users may have encountered the same issue and can provide insights or solutions.
  Transaction Codes: If this error occurs in a specific transaction, note the transaction code and look for any specific guidelines or restrictions related to that transaction.
  
  If the problem persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.