WhatsApp first. SMS when it matters.
Hopwire picks the channel for you and explains the choice. WhatsApp goes first; SMS takes over when WhatsApp fails or does not deliver in time.
What you get
A safe default
OTPs and transactional messages both try WhatsApp first, then SMS, with no setup.
Fallback on evidence
SMS is sent only after WhatsApp reports a failure that allows fallback, or does not confirm delivery within the timeout.
Choose the channel yourself
Set channel to whatsapp or sms on a send to use that channel only, with no fallback.
Every choice explained
Each message records the senders considered and why each was kept or dropped.
No blind resends
If a provider does not answer, the message is marked unknown. Hopwire does not fall back or resend, so nobody gets two codes.
Your own policies
At launchVersioned routing policies by intent, channel, provider health and time, with simulation before publishing.
Sender pools
At launchGroup several numbers and keep each recipient on the same one.
Priority for OTPs
At launchOTP, transactional and marketing traffic get separate priority and reserved capacity.
How it works
Find eligible senders
Senders the tenant owns or has a grant for, in the same environment, not restricted, with an approved version of the template.
Try WhatsApp
The WhatsApp version goes out and Hopwire waits for Meta's report.
Fall back if needed
On a failure that allows fallback, or no delivery within the timeout, the SMS version goes out.
Record it all
Both attempts stay visible in the audit trail, with the reason for the fallback.
Questions
How long does Hopwire wait before falling back?
By default 30 seconds for OTPs and 10 minutes for transactional messages. These are the platform defaults.
Does fallback cost more?
Each attempt may be charged by its provider. Under the planned pricing, fallback does not add a Hopwire unit.
Is every WhatsApp failure a reason to fall back?
No. Each outcome code says whether it allows fallback. Opt-outs and Meta's per-user marketing limit, for example, never fall back.
Related
- WhatsAppAvailableSend OTPs and transactional messages from your own WhatsApp Business number, with SMS as the fallback.
- SMSAvailableSend SMS to Indian numbers under your DLT registration, with headers, categories and variables checked before anything goes out.
- Error codesAvailableStable request error codes and delivery outcome codes, each with a cause, a fix, and whether it retries or falls back.
- For platformsAvailableSoftware platforms send for each business customer through one integration, with isolated data, scoped keys and shared senders by permission.
Start with the beta.
Hopwire is free during the invite-only beta. Tell us what you send and we will reply by email.