Message type: E = Error
Message class:  CNV_10020 - Message class for package 10020 
Message number: 641
Message text: Follow-up action 'Create collector' is processed
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.
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.
The SAP error message CNV_10020641 with the description "Follow-up action 'Create collector' is processed" typically occurs during data migration or conversion processes, particularly when using SAP's data migration tools like the SAP S/4HANA Migration Cockpit or the SAP Landscape Transformation (SLT) tools.
Cause: This error message indicates that there is an issue with the creation of a collector during the data migration process. A collector is a temporary storage area where data is gathered before it is processed or transferred to the target system. The error can arise due to several reasons, including: Data Consistency Issues: The data being migrated may not meet the required consistency checks, leading to the failure of the collector creation. Configuration Problems: Incorrect configuration settings in the migration tool or the source/target systems can prevent the collector from being created. Insufficient Authorizations: The user executing the migration may not have the necessary authorizations to create collectors or perform the required
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_10020640 Follow-up action 'Create shortcuts' is processed
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_10020639 &1 &2: Proxy &3 in proxy &4 in source field undefined
What causes this issue?  The source field contains a proxy &V4& that refers to another proxy &V3& that is undefined.How to fix this er...
CNV_10020642 Follow-up action 'Create ranges' is processed
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_10020643 Follow-up action 'Scan' is processed
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.