Hazardous substance data for product &1 country &2 region &3 not defined

What causes this issue?

The hazardous substance information for this product is not defined
although it is necessary according to the global product attributes.

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?

Define the hazardous substance information for this product, country,
and region.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.