The event is triggered when a business uninstalls an app

there is a distinguish between app install webhooks for an app and for directory/business

Directory/Business

Webhook authorization: using a business or a directory token.

Subscribing to the App Uninstalled webhook:

curl --location --request POST '/platform/v1/webhook/subscribe' \
--header 'Authorization: "Bearer Directory/business API_TOKEN"'\
--header 'Content-Type: application/json' \
--data-raw '{
"event": "app_subscription/uninstalled",
"target_url": "URL"
}'

App Uninstalled Payload Example:

{
  "entity_name": "app_subscription",
  "event_type": "uninstalled",
  "data": {
    "business_id": "3fd234234d4",
    "app_id": "app unique name"
  }
}

App

Subscribing to the App Uninstalled webhook

curl --location --request POST '/platform/v1/webhook/subscribe' \
--header 'Authorization: "Bearer app API_TOKEN"'\
--header 'Content-Type: application/json' \
--data-raw '{
"event": "application/uninstalled",
"target_url": "URL"
}'

Subscribing to the App Uninstalled webhook

{
  "entity_name": "application",
  "event_type": "uninstalled",
  "data": {
    "business_id": "ato1v212sj30krxm",
    "app_code_name": "myapp",
    "event_time": "2024-03-17T23:14:43.280-06:00"
  }
}