GTS Bonded entry without Transit declaration

Hello

The Bonded entry Customs declaration in GTS can be done only "After GR", so it requires a prior to that a Transit declaration created in GTS (after the MRN is entered in the Inbound delivery).

there is now a customer requirement where in some cases only, the Transit declaration is not required, the MRN reported to Customs is generic (always the same value).

Question: is it possible to create a Bonded entry Customs declaration without Transit declaration?

I think that it is not possible -

thanks to share if you know how this can be done