Country &: procedure & cannot be used as &

What causes this issue?

You have tried to either:
maintain a procedure as an import procedure that was defined as only an
export procedure in the definition object for export/import procedures
or
you have tried to maintain a procedure as an export procedure that was
defined as only an import procedure in the definition object for
export/import procedures.

System Response

The system issues a warning.

How to fix this error?

Correct your entry.

Error message extract from SAP system. Copyright SAP SE.