Hi Jagdeshwar,
If you have selected "Every Product is subject to legal control" for maintain customs product master under "Control Settings for Legal Control" for your legal regulation in SPRO, then system expects that either you classify your product with a valid number or mark the product as "No Control". This the first thing system checks while performing license check.
Your determination strategy comes later to determine license type based on the setup you mentioned above.
So to avoid the issue, you need to mark the products as "No Control" in this scenario.
Hope this answers your query.
regards,
Kul Vaibhav