Valid material-dependent representative already exists

What causes this issue?

You have imported a material-independent representative. However, a
material-dependent representative for material &V1& is already assigned
to supplier &V2& and valid at this time.

System Response

Data cannot be saved.

How to fix this error?

Delete either the material-dependent representative or the
material-independent representative as required.
Note: Delete the material-dependent representative if
possible.

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.