Message type: E = Error
Message class:  CNV_PE_UI -  
Message number: 168
Message text: &1 transfer method knowledge base for &2
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_PE_UI168 typically relates to issues encountered during data transfer processes, particularly in the context of SAP's data migration tools or conversion processes. This error message indicates that there is a problem with the transfer method for a specific object or data set.
Cause: Incorrect Transfer Method: The specified transfer method for the data object may not be configured correctly or may not exist. Missing Configuration: The necessary configuration for the transfer method may be missing or incomplete. Data Object Issues: The data object referenced in the error may have issues that prevent it from being processed correctly. Authorization Issues: There may be insufficient authorizations for the user attempting to execute the transfer.
Solution: Check Transfer Method Configuration: Verify that the transfer method specified in the error message is correctly configured in the system. Ensure that the method is active and properly set up for the data object in question. Review Data Object: Check the data object referenced
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_PE_UI164 Double click to view Condition &1
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_PE_UI163 Create undo transfer method for &1
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_PE_UI169 Select a sender parameter in the right lower interface trees
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_PE_UI170 No documentation available
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.