Message type: E = Error
Message class:  CNV_PE_UI_IF -  
Message number: 016
Message text: Data model header table &1 cannot be moved to other parent tables
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_UI_IF016 indicates that there is an issue with moving a data model header table to other parent tables during a data migration or conversion process. This error typically arises in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data conversion scenarios.
Cause: The error can occur due to several reasons, including: Data Model Constraints: The header table you are trying to move may have constraints or dependencies that prevent it from being reassigned to a different parent table. This could be due to foreign key relationships or other integrity constraints. Incorrect Configuration: The configuration settings for the data migration process may not be set up correctly, leading to issues when attempting to move the header table. Data Integrity Issues: There may be existing data integrity issues in the header table or related tables that need to be resolved before the move can be
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_PE_UI_IF015 Display description of parameter &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_UI_IF014 Change description of parameter &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_UI_IF017 Structural mapping type &1 with &2 as sender cannot be created
What causes this issue?  You want to create a structural mapping type &V1& with &V2& as sender interface. Structural mapping of this t...
CNV_PE_UI_IF018 Only select single row
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.