WhatsApps sending through API

What to do

• Check whether you use Sinch Campaigns API (France 🇫🇷), Campaigns API (Europe 🇪🇺), Campaigns API (North America 🇺🇸 / 🇨🇦) in eu, us. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 1d 3h it lasted.

  Anything that failed between 2026-04-20 10:03 UTC and 2026-04-21 13:50 UTC may need a replay.

• Subscribe to Sinch's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=sinch works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from Sinch 6

1. investigatingApr 20, 2026, 10:03 AM UTC

   Sending WhatsApps messages through API is not working since we do not provide requirement fields to identify WhatsApps Template.

   provider

2. investigatingApr 20, 2026, 10:08 AM UTC

   WhatsApps sendings through web application is working.

   provider

3. identifiedApr 20, 2026, 1:44 PM UTC

   The issue has been identified and a fix is being implemented.

   provider

4. identifiedApr 21, 2026, 9:49 AM UTC

   We are continuing to work on a fix to this issue, it'll be deployed this afternoon.

   provider

5. monitoringApr 21, 2026, 1:50 PM UTC

   A fix has been implemented and we are monitoring the results.

   provider

6. resolvedApr 21, 2026, 1:50 PM UTC

   This incident has been resolved.

   provider

Corrections

None so far.

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