How To Fix ISLM_API106 - Sign '&1' is not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: ISLM_API - API Messages

• Message number: 106

• Message text: Sign '&1' is not supported

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ISLM_API106 - Sign '&1' is not supported ?

  The SAP error message ISLM_API106, which states "Sign '&1' is not supported," typically occurs in the context of using the SAP ISLM (Integrated Service Lifecycle Management) API. This error indicates that an invalid sign value has been provided in a function call or API request.
  Cause:
  The error is caused by the use of an unsupported or invalid sign character in the API call. In SAP, the sign parameter is often expected to be either 'I' (for Include) or 'E' (for Exclude). If any other value is passed, such as a blank or an unexpected character, the system will throw this error.
  Solution:
  To resolve the ISLM_API106 error, follow these steps:
  
  
  Check the API Call: Review the API call or function module where the error is occurring. Ensure that the sign parameter is being set correctly.
  
  
  Correct Sign Values: Make sure that the sign value being passed is either 'I' or 'E'. If you are dynamically generating this value, ensure that the logic correctly assigns one of these two values.
  
  
  Debugging: If you are unsure where the error is originating, consider using debugging tools in SAP to trace the execution and identify where the invalid sign is being set.
  
  
  Documentation Review: Consult the SAP documentation for the specific API you are using to ensure that you are following the correct syntax and parameter requirements.
  
  
  Testing: After making the necessary changes, test the API call again to confirm that the error has been resolved.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the ISLM API. Sometimes, specific versions of SAP may have bugs that are documented in SAP Notes.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Version Compatibility: Ensure that your SAP system is up to date, as certain errors may be resolved in newer versions or patches.
  
  By following these steps, you should be able to identify and correct the cause of the ISLM_API106 error in your SAP environment.