How to suppress F2/ZF2 Billing document creation for delivery type LF from a specific order type

Hi All,

I have a requirement that needs to suppress or stop the creation of F2/ZF2 invoice for a delivery with delivery type 'LF',moreso the it will only be restricted to a specific reference type of order document.

Example: I created an order ZOR, from that order I created a delivery which will be billed. billing document F2 and ZF2 will not be allowed to be created.

Is it possible to place a logic in the copy control of LF to F2 and LF to ZF2?

Please let know on where can I place the logic to stop the creation of F2 and ZF2 documents?

Thanks alot.