How To Fix ACI_API073 - Illegal node variable index '&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: 073

• Message text: Illegal node variable index '&1'

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ACI_API073 - Illegal node variable index '&1' ?

  The SAP error message ACI_API073, which states "Illegal node variable index '&1'", typically occurs in the context of SAP's Application Interface Framework (AIF) or when working with the ACI (Application Communication Interface). This error indicates that there is an issue with the index of a node variable being referenced in your configuration or code.
  Cause:
  
  Invalid Index Reference: The error usually arises when the index specified for a node variable is out of bounds or does not exist. For example, if you are trying to access the third element of an array that only has two elements, this error will occur.
  Configuration Issues: There may be a misconfiguration in the AIF or ACI settings, where the node variable is not properly defined or initialized.
  Data Structure Changes: If there have been changes to the data structure (like adding or removing fields) and the code or configuration has not been updated accordingly, it can lead to this error.
  
  Solution:
  
  Check Node Variable Index: Review the code or configuration where the node variable is being accessed. Ensure that the index being used is valid and within the bounds of the array or list.
  Debugging: Use debugging tools to trace the execution and identify where the illegal index is being referenced. This can help pinpoint the exact location of the issue.
  Review Configuration: Go through the AIF or ACI configuration settings to ensure that all node variables are correctly defined and initialized.
  Update Code/Configuration: If there have been changes to the data structure, update the relevant code or configuration to reflect these changes.
  Consult Documentation: Refer to SAP documentation or notes related to AIF/ACI for any specific guidelines or updates that may address this issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to ACI_API073. SAP frequently updates their knowledge base with solutions for common errors.
  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.
  SAP Support: If the issue persists and you are unable to resolve it, consider reaching out to SAP Support for assistance. They can provide more detailed analysis and support based on your specific system configuration.
  
  By following these steps, you should be able to identify and resolve the cause of the ACI_API073 error in your SAP environment.