Problems with url parameter "&~transaction"

Hello Experts,

i'm using the url parameter "&~transaction" to call a transaction directly via url.

This works great for nearly all transaktions, but it doesn't work e.g. for the transaktion "FF.6".

With this transaktion the result ist the Start Screen (SMEN).

I think the ITS has a problem with the dot in the transaction.

Is there any workaround to solve this porblem?

Regards,

Thomas