1:n mappings already exist in the Central Finance system.

What causes this issue?

During the syntax check, the system detected that there are already 1:n
mappings existing in the <LS>Central Finance</> system.

System Response

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

How to fix this error?

Please check your mappings.

Procedure for System Administrators

In Customizing of <LS>Central Finance</> you can use the Customizing
activity <LS>Create and Edit Key Mapping</> (transaction <LB>M
DG_KM_MAINTAIN</>) to manually delete the already existing 1:n mappings
that are listed in the <LS>Mapping Application Log</>.

Error message extract from SAP system. Copyright SAP SE.