How To Fix AP126 - Special character "&" is still in use

SAP Error Message - Details

• Message type: E = Error

• Message class: AP - Investment program messages

• Message number: 126

• Message text: Special character "&" is still in use

What causes this issue?

You tried to delete the special character "&V1&" . This would lead to
inconsistency because it is still used in the edit screen
with the ID "&V2&" .

System Response

The function is not performed.

How to fix this error?

If you want to delete the special character "&V1&", first delete all
edit screens which use it.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AP126 - Special character "&" is still in use ?

  The SAP error message AP126 indicates that a special character, specifically the ampersand ("&"), is still in use in a certain context within the SAP system. This error typically arises when the system encounters an invalid character in a field that does not allow special characters, such as in naming conventions, text fields, or configuration settings.
  Cause:
  
  Invalid Character Usage: The ampersand character is often used in SAP for various purposes, such as in variable substitution or as a special character in certain programming contexts. If it appears in a field where it is not allowed, the system will throw this error.
  Data Entry Errors: Users may inadvertently enter special characters in fields that are not designed to accept them.
  Configuration Issues: Certain configurations or custom developments may inadvertently allow or require the use of special characters inappropriately.
  
  Solution:
  
  Identify the Source: Determine where the ampersand is being used. This could be in a text field, a naming convention, or a configuration setting.
  Remove or Replace the Character: Once the source is identified, remove the ampersand or replace it with an acceptable character. For example, if it is in a text field, consider using "and" instead of "&".
  Check Custom Code: If the error arises from custom ABAP code or enhancements, review the code to ensure that special characters are handled correctly.
  Validation Rules: Implement validation rules to prevent users from entering special characters in fields that do not support them.
  Testing: After making changes, test the affected areas to ensure that the error no longer occurs.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error message. SAP frequently updates its documentation and may have specific recommendations for your version.
  Documentation: Review SAP documentation regarding naming conventions and valid characters for the specific module or area where the error is occurring.
  User Training: Provide training to users on the acceptable formats and characters for data entry to minimize the occurrence of such errors in the future.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or reach out to SAP support for further assistance.