on board
US /ɑːn bɔːrd/
UK /ɑːn bɔːrd/

1.
2.
a bordo, partecipante
as part of a group or team, especially for a new project or initiative
:
•
We're excited to have her on board for the new marketing campaign.
Siamo entusiasti di averla a bordo per la nuova campagna di marketing.
•
The management needs to get everyone on board with the new policy.
La direzione deve far aderire tutti alla nuova politica.