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

1.
2.
dabei, mitmachen
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.
Wir freuen uns, sie für die neue Marketingkampagne dabei zu haben.
•
The management needs to get everyone on board with the new policy.
Das Management muss alle ins Boot holen für die neue Richtlinie.