Export of internal point of delivery &1 produces an error

What causes this issue?

You tried to export one of the following tables to internal point of
delivery indicator &V1&:
EUIHEAD
EUIHEADT
EUIINSTLN
EUITRANS
EUIGRID
EUIPODGROUP
EUILNR
EUILZW
EEDMUISETTLUNIT
This is not possible since converting the key triggered an error.
The internal point of delivery indicator &V1& is not permissible.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.