How To Fix EC473 - The definition of interface &2 is inconsistent. Change not possible.

SAP Error Message - Details

• Message type: E = Error

• Message class: EC - Development environment: Menu Painter

• Message number: 473

• Message text: The definition of interface &2 is inconsistent. Change not possible.

What causes this issue?

The object data &V1& of the interface &V2& is either inconsistent or
incomplete.
(For more information about the source of the inconsistency, see SAP
Note 2159455.

System Response

The interface &V2& cannot be changed/saved.
If the interface was saved earlier with inconsistent data, it can no
longer be changed in SE41 or SE80 to avoid further destruction through
changing the inconsistent data.
It is also not possible to use SPAU to apply modifications to an
interface that has these type of inconsistencies.

How to fix this error?

Refer to the &V2& application component &V3& responsible for the
interface in question.
It is possible that the problem is (was) caused by an incomplete
downport or by the execution of a program that, for example, was de
livered with an SAP Note and created the CUA data inconsistently.
If this messages occurs in transaction SPAU when applying modifications,
the only option is to reset the interface to its original version. For a
correction contact the application component &V3&, which is responsible
for interface &V2&. Once the application has provided a correction, the
customer modifications can be implemented again manually in Menu
Painter.
If the message occurs in transaction SNOTE when applying a correction
instruction for this interface, the correction instruction itself is
inconsistent. It is not possible to apply the correction instruction.
For a correction, contact the application component responsible for the
note.

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EC473 - The definition of interface &2 is inconsistent. Change not possible. ?

  The SAP error message EC473, which states "The definition of interface &2 is inconsistent. Change not possible," typically occurs when there is an inconsistency in the definition of an interface in the SAP system. This can happen for various reasons, such as changes made to the interface that are not properly reflected in all related components or dependencies.
  Causes:
  
  Inconsistent Interface Definition: The interface may have been modified (e.g., methods added or removed) without updating all dependent objects.
  Transport Issues: If the interface was transported from one system to another (e.g., from development to production), there may be inconsistencies due to missing or incomplete transport requests.
  Version Conflicts: Different versions of the interface may exist in different environments, leading to inconsistencies.
  Missing Implementations: If an interface method is defined but not implemented in the corresponding class, it can lead to this error.
  
  Solutions:
  
  Check Interface Definition: Review the interface definition in the SAP system to ensure that it is complete and consistent. Look for any missing methods or parameters.
  Rebuild Dependencies: If there are dependent classes or methods, ensure they are updated to reflect the current state of the interface. You may need to regenerate or recompile these objects.
  Transport Consistency: If the issue arose after a transport, check the transport logs to ensure that all necessary objects were included and correctly imported.
  Check for Active Implementations: Ensure that all methods defined in the interface have corresponding implementations in the classes that implement the interface.
  Use Transaction SE80: Use the Object Navigator (SE80) to navigate to the interface and check for any inconsistencies or errors in the definition.
  Activate Objects: Sometimes, simply activating the interface and its dependent objects can resolve the issue. Use transaction SE80 or SE11 to activate the objects.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: SE80 (Object Navigator), SE11 (Data Dictionary), SE37 (Function Module), SE24 (Class Builder).
  Documentation: Review SAP documentation on interfaces and object-oriented programming in ABAP for best practices.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or ABAP development team for further investigation.