How To Fix /IWFND/CM_V4_COS174 - DB Error: Assignment group '&1' system alias '&2' not deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_V4_COS -

• Message number: 174

• Message text: DB Error: Assignment group '&1' system alias '&2' not deleted

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_V4_COS174 - DB Error: Assignment group '&1' system alias '&2' not deleted ?

  The SAP error message /IWFND/CM_V4_COS174 DB Error: Assignment group '&1' system alias '&2' not deleted typically indicates an issue related to the deletion of an assignment group in the context of the SAP Gateway or OData services. This error can occur due to various reasons, including database constraints, missing dependencies, or issues with the configuration.
  Possible Causes:
  
  Database Constraints: There may be foreign key constraints preventing the deletion of the assignment group.
  Dependencies: The assignment group might be in use by other objects or services, which prevents it from being deleted.
  Authorization Issues: The user executing the deletion may not have the necessary permissions to perform this action.
  System Alias Issues: The system alias specified may not be correctly configured or may not exist in the system.
  Technical Issues: There could be underlying technical issues with the database or the SAP system itself.
  
  Solutions:
  
  Check Dependencies: Verify if the assignment group is being used by any other objects or services. If it is, you will need to remove those dependencies before attempting to delete the assignment group.
  Review Database Constraints: Check the database for any constraints that might be preventing the deletion. You may need to consult with your database administrator.
  Authorization Check: Ensure that the user has the necessary authorizations to delete the assignment group. You may need to adjust roles or permissions.
  Validate System Alias: Confirm that the system alias specified in the error message is correctly configured in the SAP Gateway settings. You can check this in transaction /IWFND/MAINT_SERVICE.
  Use Transaction Codes: Use transaction codes like SE11 (Data Dictionary) or SE14 (Database Utility) to analyze the database tables related to the assignment group and see if there are any issues.
  Check Logs: Review the application logs (transaction SLG1) for more detailed error messages that might provide additional context on why the deletion failed.
  Consult SAP Notes: Look for any relevant SAP Notes that might address this specific error or provide guidance on similar issues.
  
  Related Information:
  
  SAP Gateway: The error is related to the SAP Gateway framework, which is responsible for exposing OData services.
  OData Services: Understanding how OData services are structured and how assignment groups are used can help in troubleshooting.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /IWFND/MAINT_SERVICE, /IWFND/ERROR_LOG, and others that can help in managing OData services and troubleshooting errors.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance, providing them with the error details and any steps you have already taken.