Why this happens
Common reasons include:
Phone turned off: The recipient’s device may be temporarily unavailable.
Unpaid bill / service suspension: The carrier may have suspended the number due to non‑payment.
Inactive number: The phone number may no longer be in service.
Number blocked: The recipient may have blocked your number.
Incorrect number: A typo or outdated number could prevent delivery.
Example: "Why can’t I send a message to a contact?"
A user attempted to send a message to a contact and saw it fail.
Investigation showed the failure was on the recipient’s end (not the sender’s system).
Possible causes: inactive number, blocked number, or phone switched off.
How to resolve it
Resend later
The phone may simply be turned off or out of coverage.Verify the number
Double‑check that the destination number is typed correctly and is still active.Confirm service status
If possible, ask the recipient to check whether their service is active and whether bills are paid.Try another channel
If you suspect your number is blocked, or if delivery issues persist, reach out via email, voice call, or another messaging app.
Quick tips
Always test with another valid number to confirm the issue is specific to the recipient.
Update contact details regularly to avoid messaging inactive numbers.
If the error persists across multiple numbers, escalate to support, it may be a broader deliverability issue.
In short: This error usually points to a recipient‑side issue, not a problem with your account. Verifying the number and trying again later often resolves it.