How To Fix /IWFND/CM_V4_COS166 - System alias '&1' is still in use

/IWFND/CM_V4_COS166 - Overview

• Message type: E = Error

• Message class: /IWFND/CM_V4_COS -

• Message number: 166

• Message text: System alias '&1' is still in use

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_COS166 - System alias '&1' is still in use ?

  The SAP error message /IWFND/CM_V4_COS166 indicates that a system alias (represented by &1) is still in use, which typically means that there are active connections or references to that system alias that prevent it from being deleted or modified.
  
  Cause:
  
  Active Connections: The system alias is currently being used by one or more services or applications.
  
  Configuration Issues: There may be configuration settings or dependencies that are still referencing the system alias.
  Caching: Sometimes, caching mechanisms may hold onto the alias, causing it to appear as still in use.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Active Services:
  
  Use transaction code /IWFND/MAINT_SERVICE to check if there are any active services that are using the system alias. If there are, you may need to deactivate or remove those services before you can delete or modify the alias.
  
  
  
  Review System Alias Usage:
  
  Go to transaction code /IWFND/CM_COS to see the list of system aliases and their usage. This