How do you combine both without duplicating audiences?

Search and Meta do not go out together on the same cap and the same offer, because you will not know which one brought the table. They combine once one already has messages and the other is tested with a separate cap, not with the money split blind. Pick one channel for the next two weeks and note where people say they saw you. Without that question on the floor, adding another channel is noise. In Madrid, Google and Meta are switched on the same Monday with the same photo. Bookings arrive and nobody knows which to turn off. One channel live, the other waiting, and a fixed question when someone books: ad, listing or Instagram. After two weeks you decide whether the second comes in, with its own cap.