Billing Document taking save without performing PGI

Dear Experts,

In our company all of our Billing is delivery related and we can not perform VF01 without performing post goods issue. But problem is we have configured a new company and after that Billing Documents taking save without performing PGI. Can you please advice us how can I restrict this again because we don't want any Billing document without PGI.

Thanks in advance for your kind support and co-operation.

Best Regards.

Ripon Kumar Paul