How To Fix CNV_MBT_46143 - Activity id already exists; enter a different activity id

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT_46 - PCL message class

• Message number: 143

• Message text: Activity id already exists; enter a different activity id

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 CNV_MBT_46143 - Activity id already exists; enter a different activity id ?

  The SAP error message CNV_MBT_46143 indicates that there is an attempt to create or use an activity ID that already exists in the system. This error typically occurs in the context of data migration or conversion processes, particularly when using the SAP Migration Cockpit or similar tools.
  Cause:
  
  Duplicate Activity ID: The most common cause of this error is that the activity ID you are trying to create or use is already present in the system. Each activity ID must be unique to avoid conflicts.
  Incorrect Data Entry: There may have been a typographical error or misunderstanding regarding the activity ID that is being entered.
  System Configuration: In some cases, the system configuration or settings may lead to conflicts with existing IDs.
  
  Solution:
  
  
  Check Existing Activity IDs: Before creating a new activity ID, check the list of existing activity IDs in the system to ensure that the one you want to use is not already taken.
  
  You can do this by navigating to the relevant transaction or using the appropriate report to list existing activity IDs.
  
  
  
  Use a Different Activity ID: If the activity ID you intended to use is already in use, choose a different, unique ID that does not conflict with existing entries.
  
  
  Review Documentation: If you are unsure about the naming conventions or the format for activity IDs, refer to the documentation or guidelines provided for the specific migration or conversion process you are working on.
  
  
  Consult with Colleagues: If you are working in a team, check with your colleagues to see if they are using the same activity ID or if they have created one that you were unaware of.
  
  
  System Cleanup: If you believe that the existing activity ID is no longer needed, you may consider cleaning up or archiving old or unused activity IDs, but this should be done with caution and typically requires administrative privileges.
  
  
  Related Information:
  
  SAP Notes and Documentation: Check SAP Notes related to the specific migration tool you are using for any known issues or additional guidance.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help you manage activity IDs, such as LTMC for the Migration Cockpit.
  User Roles and Permissions: Ensure that you have the necessary permissions to create or modify activity IDs in the system.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP support team or consulting the SAP community for further assistance.