How To Fix OO391 - AMDP methods for DDL Objects cannot be tested and were removed

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 391

• Message text: AMDP methods for DDL Objects cannot be tested and were removed

What causes this issue?

Methods for DDL Objects have no executable units and can only
be used by other AMDP methods.

System Response

Methods were removed from the node containing testable
methods.

How to fix this error?

The AMDP methods for DDL Objects can only be indirectly tested
by other AMDP methods.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message OO391 - AMDP methods for DDL Objects cannot be tested and were removed ?

  The SAP error message OO391 indicates that AMDP (ABAP Managed Database Procedures) methods for DDL (Data Definition Language) objects cannot be tested in the ABAP Development Tools (ADT) environment and have been removed from the testing options. This typically occurs when you attempt to test an AMDP method that is associated with DDL operations, such as creating or altering database objects.
  Cause:
  The primary cause of this error is that AMDP methods that perform DDL operations cannot be executed in a testing context. DDL operations change the structure of the database, and testing such methods could lead to unintended consequences, such as modifying or deleting database objects. Therefore, SAP restricts the testing of these methods to prevent potential issues.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check the AMDP Method: Ensure that the AMDP method you are trying to test does not perform any DDL operations. If it does, you will need to modify your approach.
  
  
  Testing in a Different Context: Instead of testing the AMDP method directly in the ADT, you can:
  
  Create a separate ABAP program or report that calls the AMDP method.
  Execute the program in a controlled environment (e.g., a development or test system) where you can safely perform DDL operations.
  
  
  
  Use Transaction SE80 or SE11: If you need to test the DDL operations, consider using transaction SE80 or SE11 to execute the DDL statements directly, rather than through an AMDP method.
  
  
  Review Documentation: Consult the SAP documentation for AMDP and DDL operations to understand the limitations and best practices for working with these features.
  
  
  Error Handling: Implement proper error handling in your AMDP methods to manage any exceptions that may arise during execution.
  
  
  Related Information:
  
  AMDP Overview: AMDP allows you to write database procedures in ABAP that can be executed on the database server. They are particularly useful for performance optimization and leveraging database capabilities.
  DDL Operations: DDL operations include commands like CREATE, ALTER, and DROP, which modify the structure of database objects.
  Testing Best Practices: When working with database procedures, it's essential to follow best practices for testing, such as using mock data and ensuring that your tests do not affect production data.
  
  By following these guidelines, you should be able to work around the OO391 error and effectively test your AMDP methods without running into issues related to DDL operations.