How To Fix ACI_API058 - Illegal node-test: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: ACI_API - EXPERIMENTAL, DON'T USE (Messages raised by the ACI's API)

• Message number: 058

• Message text: Illegal node-test: &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ACI_API058 - Illegal node-test: &1 ?

  The SAP error message ACI_API058 "Illegal node-test: &1" typically occurs in the context of SAP applications that utilize the ABAP programming language and may involve XML processing or XSLT transformations. This error indicates that there is an issue with the node-test in an XPath expression, which is not valid or recognized by the system.
  Cause:
  
  Invalid XPath Expression: The error is often caused by an invalid or unsupported XPath expression in the code. This could be due to a typo, incorrect syntax, or using a node-test that is not supported by the version of the XML processor being used.
  Unsupported Node-Test: The specific node-test being referenced (indicated by &1 in the error message) may not be supported in the context where it is being used.
  Data Structure Issues: If the XML data structure does not match the expected format, it can lead to this error when trying to access nodes that do not exist.
  
  Solution:
  
  Check XPath Expression: Review the XPath expression in your code to ensure that it is correctly formed and that all node-tests are valid. Make sure that you are using supported XPath functions and syntax.
  Validate XML Structure: Ensure that the XML data being processed matches the expected structure. You can use XML validation tools to check for well-formedness and schema compliance.
  Debugging: Use debugging tools in SAP to trace the execution of the code and identify where the error occurs. This can help pinpoint the exact XPath expression causing the issue.
  Consult Documentation: Refer to SAP documentation or the specific XML/XSLT processor documentation to understand the supported features and limitations regarding XPath expressions.
  Update Code: If the node-test is indeed unsupported, consider rewriting the XPath expression to use a different approach that is compatible with the system.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  Documentation: Review the official SAP documentation for the specific module or component you are working with, as it may provide additional context or examples related to XML processing and XPath usage.
  
  By following these steps, you should be able to identify the cause of the ACI_API058 error and implement a suitable solution.