1. Filtering removed the audience
Before send, Inboxapp:- Removes excluded lists (for example Contacted)
- Removes unreachable leads (closed DMs, private, suspended, and similar)

2. Account or schedule
- X account still linked — Add an X account
- Workspace timezone / send window configured — Scheduling
3. Daily limit reached
New-contact sends pause until the next day when you hit the plan cap — Daily DM limits.Checklist
- Review excluded lists and remaining audience size
- Confirm account link and schedule
- Check daily usage
- Import fresher reachable leads if needed