How To Fix CLB2_PARSE102 - Expression '&1' is not supported by Gateway

SAP Error Message - Details

• Message type: E = Error

• Message class: CLB2_PARSE - Texts for parser exceptions

• Message number: 102

• Message text: Expression '&1' is not supported by Gateway

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CLB2_PARSE102 - Expression '&1' is not supported by Gateway ?

  The SAP error message CLB2_PARSE102 with the description "Expression '&1' is not supported by Gateway" typically occurs in the context of SAP Gateway services, particularly when there is an issue with the expression or query being sent to the Gateway.
  Cause:
  
  Unsupported Expression: The expression or query being used in the OData service is not supported by the SAP Gateway. This can happen if the expression includes functions or operations that are not recognized by the Gateway.
  Syntax Errors: There may be syntax errors in the query that prevent it from being parsed correctly.
  Version Compatibility: The version of the SAP Gateway or the underlying system may not support certain features or expressions that are being used in the query.
  Data Model Issues: The data model being queried may not be properly defined or may not support the requested operations.
  
  Solution:
  
  Check the Expression: Review the expression or query being sent to the Gateway. Ensure that it adheres to the supported syntax and operations for the version of the Gateway you are using.
  Simplify the Query: If possible, simplify the query to see if a more basic version works. This can help identify which part of the expression is causing the issue.
  Review Documentation: Consult the SAP Gateway documentation to understand the supported expressions and operations. This can help you identify if you are using unsupported features.
  Update Gateway: If you are using an older version of the SAP Gateway, consider updating to a newer version that may support the expressions you are trying to use.
  Check Data Model: Ensure that the data model (OData service) is correctly defined and that all necessary entities and relationships are properly set up.
  Debugging: Use transaction codes like /IWFND/ERROR_LOG to check for additional error details that may provide more context on the issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message CLB2_PARSE102.
  OData Services: Familiarize yourself with OData service development and the limitations of the SAP Gateway.
  Community Forums: Engage with the SAP Community or forums where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.