Issue with OneSignal Integration in Novu: Workflow Runs, but No Notifications Received

Hi guys!

I'm trying to use integration of OneSignal with Novu for push notifications, but messages are not reaching OneSignal. Novu does not return any errors, yet OneSignal does not receive the request to trigger the push notification.

I followed the official Novu guide for integrating OneSignal: https://docs.novu.co/integrations/providers/push/onesignal, configured OneSignal with APP_ID and API_KEY, and triggered a workflow in Novu that should send a push notification. The logs show that the deviceToken for the given external ID is correctly retrieved, but checking the OneSignal dashboard, no request appears.

I then tried executing the following cURL request manually:

curl --request POST \
  --url https://onesignal.com/api/v1/notifications \
  --header "Content-Type: application/json; charset=utf-8" \
  --header "Authorization: Key KEY" \
  --data '{
    "app_id": "APP-ID",
    "include_external_user_ids": ["EXTERNAL_ID"],
    "channel_for_external_user_ids": "push",
    "contents": { "en": "Test message from OneSignal!" },
    "headings": { "en": "Notification Title" },
    "data": { "custom_key": "custom_value" }
  }'

curl --request POST \
  --url https://onesignal.com/api/v1/notifications \
  --header "Content-Type: application/json; charset=utf-8" \
  --header "Authorization: Key KEY" \
  --data '{
    "app_id": "APP-ID",
    "include_external_user_ids": ["EXTERNAL_ID"],
    "channel_for_external_user_ids": "push",
    "contents": { "en": "Test message from OneSignal!" },
    "headings": { "en": "Notification Title" },
    "data": { "custom_key": "custom_value" }
  }'

This request works correctly, and push notifications are delivered.

Expected behavior: When triggering a workflow in Novu, it should retrieve the deviceToken for the given external ID, send a request to OneSignal, and successfully trigger the push notification.

Current behavior: The workflow runs without errors, device token retrieval is successful, but no request reaches OneSignal, and no push notification is sent.

Has anyone encountered this issue before or has suggestions on what to check?

@Support @Community Support

Novu

What is Novu? - Novu

Issue with OneSignal Integration in Novu: Workflow Runs, but No Notifications Received

Hi guys!

curl --request POST \
  --url https://onesignal.com/api/v1/notifications \
  --header "Content-Type: application/json; charset=utf-8" \
  --header "Authorization: Key KEY" \
  --data '{
    "app_id": "APP-ID",
    "include_external_user_ids": ["EXTERNAL_ID"],
    "channel_for_external_user_ids": "push",
    "contents": { "en": "Test message from OneSignal!" },
    "headings": { "en": "Notification Title" },
    "data": { "custom_key": "custom_value" }
  }'

curl --request POST \
  --url https://onesignal.com/api/v1/notifications \
  --header "Content-Type: application/json; charset=utf-8" \
  --header "Authorization: Key KEY" \
  --data '{
    "app_id": "APP-ID",
    "include_external_user_ids": ["EXTERNAL_ID"],
    "channel_for_external_user_ids": "push",
    "contents": { "en": "Test message from OneSignal!" },
    "headings": { "en": "Notification Title" },
    "data": { "custom_key": "custom_value" }
  }'

Novu

What is Novu? - Novu

Issue with OneSignal Integration in Novu: Workflow Runs, but No Notifications Received

Issue with OneSignal Integration in Novu: Workflow Runs, but No Notifications Received

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