How To Fix 5B551 - Class & does not implement interface &

5B551 - Overview

• Message type: E = Error

• Message class: 5B -

• Message number: 551

• Message text: Class & does not implement interface &

What causes this issue?

If you want to use class &V1& as an emulation class for infotype &V3&,
the class must implement interface &V2&.

System Response

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

How to fix this error?

Use a suitable class as an emulation class.

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 5B551 - Class & does not implement interface & ?

  The SAP error message 5B551 typically indicates that a class does not implement a specified interface. This error can occur in various scenarios, particularly when working with ABAP (Advanced Business Application Programming) in SAP systems. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause
  
  Missing Implementation: The class you are trying to use does not implement all the methods defined in the specified interface.
  Incorrect Class Definition: The class might not be correctly defined to implement the interface, or there may be a typo in the interface name.
  Changes in Interface: If the interface has been modified (e.g., methods added or changed) and the class has not been updated accordingly, this error can occur.
  Version Mismatch: There may be a version mismatch between the interface and the class, especially if the class was created before the interface was updated.
  
  Solution
  
  
  Check Class Implementation:
  
  Open the class in the ABAP Workbench (transaction SE80 or SE24).
  Verify that