Enter a correct partner status

What causes this issue?

An entry with the key &v2& is to be inserted in table
&v1&.
The value '&v3&' in the field <LS>Partner status</> (EDPP1-MATLVL) is
not valid.

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?

Enter a valid value or display the possible values using the Possible
entries pushbutton (F4).

Error message extract from SAP system. Copyright SAP SE.