Material has to be passed for the quantity conversion

What causes this issue?

The quantity conversion is requested to be based on static conversion
factors that are maintained in the material master. Thus, the material
number is required.

System Response

The calculation cannot be performed.

How to fix this error?

Enter a valid material number.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.