How To Fix /AIF/IDOC023 - Syntax for basic type &1 with extension &2 not found

/AIF/IDOC023 - Overview

• Message type: E = Error

• Message class: /AIF/IDOC -

• Message number: 023

• Message text: Syntax for basic type &1 with extension &2 not found

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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/AIF/IDOC023 - Details

• The SAP error message /AIF/IDOC023 Syntax for basic type &1 with extension &2 not found typically occurs in the context of the Application Interface Framework (AIF) when dealing with IDocs (Intermediate Documents). This error indicates that the system is unable to find the specified syntax for the given basic type and its extension.
  
  Cause:
  
  Missing or Incorrect Configuration: The basic type or its extension may not be properly configured in the system. This could be due to missing entries in the relevant tables or incorrect settings.
  Transport Issues: If the IDoc type or its extension was recently transported from another system, it may not have been transported correctly, leading to missing definitions.
  Namespace Issues: If the IDoc is defined in a specific namespace, the system may not be able to locate it if the namespace is not correctly set up.
  Version Mismatch: There may be a version mismatch between the IDoc definitions in the source