No data was transferred in parameter &1

What causes this issue?

No data was transferred in parameter &V1&.

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?

A record contains a material number that consists of blanks.
Enter an allowed material number.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.