Selection variant & contains no selection criteria! See long text

What causes this issue?

In the selection variant structure &V1&, no field has been flagged as a
selektion criterion.
An access routine for the info structure in question cannot, however,
be generated without at least one selection criterion.

System Response

Message no. M-023

How to fix this error?

Please select at least one field in the list as a selection criterion
and make sure that at least one key field of the info structure is
beneath it.
Otherwise, accessing the info structure will lead to long runtimes.

Error message extract from SAP system. Copyright SAP SE.