A send was blocked: what the reasons mean
A blocked dispatch means the workflow reached mxAURA but the campaign could not send. The contact is not lost (HubSpot holds them and retries) but nothing goes out until you fix the reason:
| Reason | Fix |
|---|---|
| no sender | Assign a sender on the campaign (or set a default sender on the account) |
| no branding | Set a default branding on the account |
| reauth required | Reconnect HubSpot in Settings |
| campaign disabled | Turn Enabled on |
Blocked sends appear in Activity → Dispatches with the reason, and the bell notifies you. Agencies see client blocks on the client page.