How To Fix ACI_API066 - Unknown argument "&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: 066

• Message text: Unknown argument "&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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ACI_API066 - Unknown argument "&1" ?

  The SAP error message ACI_API066 "Unknown argument '&1'" typically indicates that there is an issue with the parameters being passed to an API or function module in SAP. This error suggests that one of the arguments being used is not recognized by the system, which can occur for several reasons.
  Causes:
  
  Typographical Error: There may be a typo in the argument name or value being passed to the API.
  Incorrect API Usage: The API or function module may be called with the wrong set of parameters, or the parameters may be in the wrong order.
  Version Mismatch: The API being called may have been updated or changed, and the calling program is using an outdated version of the API.
  Missing Configuration: Certain configurations or settings may be required for the API to recognize the arguments being passed.
  Data Type Mismatch: The data type of the argument being passed may not match the expected data type defined in the API.
  
  Solutions:
  
  Check Documentation: Review the API documentation to ensure that you are using the correct arguments and that they are in the correct format.
  Verify Argument Names: Double-check the argument names and values being passed to ensure there are no typos or incorrect references.
  Update Code: If the API has been updated, modify your code to align with the new parameters and their expected formats.
  Debugging: Use debugging tools in SAP to trace the execution of the program and identify where the error occurs. This can help pinpoint the exact argument causing the issue.
  Consult with SAP Support: If the issue persists, consider reaching out to SAP support or consulting with a developer who has experience with the specific API.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific API you are using.
  Community Forums: Look for discussions in SAP community forums or platforms like SAP Community, where other users may have encountered similar issues.
  Transaction Codes: Familiarize yourself with relevant transaction codes (e.g., SE37 for function modules) to explore the API and its parameters.
  
  By following these steps, you should be able to identify the cause of the ACI_API066 error and implement a solution to resolve it.