Problem
Launch shows an error, or the button stays in a loading state.
Possible causes
- A readiness requirement is not met — no mailbox, no eligible leads, missing subject or body
- The audience is very large and is still being queued in batches
- A transient network interruption during launch
How to check
- Read the readiness bar on the campaign's Overview; it names what is blocking you.
- Open the Queue tab — if scheduled messages are appearing, queueing is working.
- Refresh the page and re-check the campaign's status.
How to fix
- Resolve every readiness item and launch again.
- For a large audience, let queueing finish; it runs in batches and resumes rather than starting over.
- Launching again after a partial launch is safe: recipients already queued are not duplicated.
When to contact support
The readiness bar is clear, no messages appear in the queue, and launch errors repeatedly.
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