How To Fix OQ_H127 - Error in message structure definition. IDoc type could not be generated

OQ_H127 - Overview

• Message type: E = Error

• Message class: OQ_H - IS-Oil SSR : Message pool Interfaces/IAC/BAPI development

• Message number: 127

• Message text: Error in message structure definition. IDoc type could not be generated

What causes this issue?

The IDOC type for the clearing house settlement message structure could
not be generated. There are one or more active footer segments in the
structure for which the corresponding header segments are not active.

System Response

The system will not proceed with generating the IDOC type for this
message structure.

How to fix this error?

Please correct the message structure definition for the clearing house
settlement.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

OQ_H127 - Details

• The SAP error message OQ_H127, which states "Error in message structure definition. IDoc type could not be generated," typically occurs when there is an issue with the definition of the IDoc (Intermediate Document) structure in the SAP system. This error can arise due to various reasons, including inconsistencies in the IDoc type definition, missing segments, or issues with the underlying data dictionary objects.
  Causes:
  
  Inconsistent IDoc Definition: The IDoc type may have inconsistencies in its structure, such as missing segments or fields that are not properly defined.
  Data Dictionary Issues: Problems with the underlying data dictionary objects (like tables or structures) that the IDoc relies on can lead to this error.
  Transport Issues: If the IDoc type was recently transported from another system, there may be issues with the transport that caused the IDoc definition to be incomplete or corrupted.
  Authorization Issues: Lack of proper authorizations to access or modify IDoc definitions can also lead