SMS Stuck in Queue

"Stuck" almost always means one of two things: the SIM that would send it isn't actually polling, or it's genuinely still within a normal delay window.

Stuck at queued

This means no SIM has claimed it yet. Check:

• Is the destination SIM (the one from resolves to, or your assigned SIM on the dashboard) online? See SIM Offline.
• Sent via the platform pool? A pool with no currently-online device returns a 503 at send time rather than queuing silently — if you got a 202, a pool device was available at that moment.
• Has it actually been less than ~20 seconds? That's the normal wait for the next poll cycle — see How Connecfy Works.

Stuck at sending

This means a SIM claimed it but hasn't reported a result. If the SIM dropped offline right after claiming it, Connecfy will notice after 3 minutes and put it back in the queue automatically, up to 3 times, before marking it failed — see Message Lifecycle. A message legitimately sitting at sending for under 3 minutes isn't stuck yet by Connecfy's own definition.

If it never resolves after several retries

That points to the SIM being offline for the entire retry window (several minutes), not a one-off blip. Confirm the phone's connectivity and app state per SIM Offline, then resend once it's confirmed back online.