How To Fix IDOC_ADAPTER156 - Segment reduction with Release &1: No EDISDEF metadata

IDOC_ADAPTER156 - Overview

• Message type: E = Error

• Message class: IDOC_ADAPTER - Messages for the IDoc Adapter

• Message number: 156

• Message text: Segment reduction with Release &1: No EDISDEF metadata

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 IDOC_ADAPTER156 - Segment reduction with Release &1: No EDISDEF metadata ?

  The SAP error message IDOC_ADAPTER156, which states "Segment reduction with Release &1: No EDISDEF metadata," typically occurs in the context of IDoc processing when the system is unable to find the necessary metadata for a specific segment in the IDoc. This can happen for various reasons, including configuration issues or missing definitions in the EDI subsystem.
  
  Cause:
  
  Missing EDISDEF Metadata: The error indicates that the system cannot find the required EDISDEF (EDI Segment Definition) metadata for the specified release. This metadata is essential for interpreting the IDoc segments correctly.
  Incorrect Configuration: The configuration for the EDI subsystem may not be set up correctly, leading to the inability to map the IDoc segments to the corresponding EDI definitions.
  Version Mismatch: The IDoc may be using a version or release that is not supported or defined in the system, leading to a lack of corresponding metadata.
  Transport Issues: If the EDISDEF metadata was recently transported from another