1:n mappings are not allowed in the CSV file.

What causes this issue?

In the CSV file, you are attempting to assign one value of the source
system to more than one value in the <LS>Central Finance</> system.

System Response

This is <ZH>not</> allowed and these entries will <ZH>not</> be
uploaded.

How to fix this error?

Only assign <ZH>one</> value of the source system to <ZH>one</> value in
the <LS>Central Finance
</> system, so that the CSV file is uploaded to the <LS>Central Finance
</> system.

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.