BC-Set &1 contains both shared and non-shared Table content

What causes this issue?

BC-Set contains shared as well as non-shared tables in the Customizing
objects involved.

System Response

BC-Set Activation will proceed without Error Message, but may lead to
data inconsistencies while activation in a Multitenant system.

How to fix this error?

There are two options:
1),,Re-consider Sharing types of Tables which are shared and if it is
valid for being shared, consider changing sharing types for non-shared
tables in BC-Set. It is not recommended to have a heterogenous
customizing objects and BC-Sets with tables both shared and non-shared.
Sharing type can be modified in Technical settings for a table through
SE11.
2),,Split the objects with only sharing types into different BC-Set
where BC-Sets are homogenous , whether with only shared tables or only
non-shared tables underlying.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.