How To Fix CNV_IUUC_REPL_UI021 - Unlock function DEQUEUE_E_IUUC_TRIG_OPT doesn't exist in source system

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_REPL_UI - IUUC replication messages related to UI

• Message number: 021

• Message text: Unlock function DEQUEUE_E_IUUC_TRIG_OPT doesn't exist in source system

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_IUUC_REPL_UI021 - Unlock function DEQUEUE_E_IUUC_TRIG_OPT doesn't exist in source system ?

  The SAP error message CNV_IUUC_REPL_UI021 indicates that the system is unable to find the unlock function DEQUEUE_E_IUUC_TRIG_OPT in the source system. This error typically arises during the execution of a data migration or replication process, particularly when using the SAP Landscape Transformation (SLT) tool or similar data replication technologies.
  Cause:
  
  Missing Function Module: The function module DEQUEUE_E_IUUC_TRIG_OPT is not available in the source system. This could be due to an incomplete installation or configuration of the necessary components.
  Version Mismatch: The source system may be running an older version of SAP that does not include this function module, or it may not be properly updated.
  Transport Issues: If the function module was recently transported to the system, there may have been issues during the transport process that prevented it from being properly installed.
  Authorization Issues: The user executing the operation may not have the necessary authorizations to access the function module.
  
  Solution:
  
  Check Function Module: Verify if the function module DEQUEUE_E_IUUC_TRIG_OPT exists in the source system. You can do this by using transaction code SE37 (Function Builder) and searching for the function module.
  Install/Update Components: If the function module is missing, ensure that the necessary components for SLT or data replication are installed and up to date. This may involve applying support packages or enhancement packages.
  Transport the Function Module: If the function module is part of a transport request, ensure that the transport has been successfully imported into the source system.
  Check Authorizations: Ensure that the user has the necessary authorizations to execute the function module. You may need to consult with your SAP security team to verify and adjust authorizations as needed.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  Related Information:
  
  SAP Notes: Look for SAP Notes related to SLT and the specific function module. These notes may provide insights into known issues and fixes.
  Documentation: Review the official SAP documentation for SLT and data replication to ensure that all prerequisites and configurations are correctly set up.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.