Ticket created notification via WhatsApp API
The scenario sends the client a personalized WhatsApp template when a new support ticket is created.
Use case overview
The scenario sends the client a personalized WhatsApp template when a new support ticket is created. The message includes the client name, ticket number, and what happens next. A static URL button opens the ticket status page or help portal.
Template example
Hello, {{1}}! Your ticket #{{2}} has been created. {{3}} If you have additional questions — message us.
- {{1}}customer name
- {{2}}ticket or case number
- {{3}}next step or guidance (e.g. we will reply within 24 hours, add details via portal)
- “Request status”button — fixed in the Meta template

When to use it
Use this scenario when a client submits a support request and needs an immediate reference number before an agent picks up the ticket. It fits helpdesk and SaaS support teams, telecom and utility service desks, and agencies wiring ticket-created webhooks from Zendesk, Freshdesk, or a CRM.
Workflow
- Trigger
The client submits a support request via form, widget, or email.
event·triggered - Creates a ticket
The helpdesk creates a ticket and fires a ticket-created event.
event·triggered - Build & send
A personalized template message is built with three body variables and a static URL button.
POST/sendTemplate - Delivered
The client receives the WhatsApp notification with ticket number and next steps.
delivered - Status tracked
Delivery result is logged; errors are handled according to platform rules.
status:"read"

Technical implementation
Prerequisites
- 1MSG API Key · How to get API Key
- WhatsApp Business account · How to Connect WABA
- WhatsApp Template · How to Approve WABA Template
- Customer opt-in · How to Manage Customers Consent
Code examples
#!/usr/bin/env bash
set -euo pipefail
# === Configuration (replace "___" placeholders) ===
API_BASE_URL="https://api.1msg.io" # production 1MSG API base URL
CHANNEL_ID="___" # channel ID from 1MSG dashboard
API_TOKEN="___" # channel JWT token (Bearer)
TEMPLATE_NAME="___" # approved template name
TEMPLATE_NAMESPACE="___" # template namespace (required — send fails without it)
TEMPLATE_LANGUAGE="___" # template language code, e.g. "en"
# === Test data ===
TEST_PHONE="___" # client phone in international format
TEST_CUSTOMERNAME="___" # {{1}} customer name
TEST_TICKETNUMBER="___" # {{2}} ticket number
TEST_NEXTSTEP="___" # {{3}} next step
PHONE_NORM="$(printf '%s' "$TEST_PHONE" | tr -cd '0-9')"
for pair in "CHANNEL_ID=$CHANNEL_ID" "API_TOKEN=$API_TOKEN" \
"TEMPLATE_NAME=$TEMPLATE_NAME" "TEMPLATE_NAMESPACE=$TEMPLATE_NAMESPACE" \
"TEMPLATE_LANGUAGE=$TEMPLATE_LANGUAGE" "TEST_PHONE=$TEST_PHONE" \
"TEST_CUSTOMERNAME=$TEST_CUSTOMERNAME" \
"TEST_TICKETNUMBER=$TEST_TICKETNUMBER" \
"TEST_NEXTSTEP=$TEST_NEXTSTEP"; do
val="${pair#*=}"
if [ -z "$val" ] || [ "$val" = "___" ]; then
echo "Missing configuration value: ${pair%%=*}" >&2
exit 1
fi
done
if [ -z "$PHONE_NORM" ]; then
echo "Error: phone number has no digits after normalization" >&2
exit 1
fi
URL="${API_BASE_URL%/}/${CHANNEL_ID}/sendTemplate"
# params carries body ONLY. Button text is fixed in the Meta template — no button param.
# {{1}} customer name → ${TEST_CUSTOMERNAME}
# {{2}} ticket number → ${TEST_TICKETNUMBER}
# {{3}} next step → ${TEST_NEXTSTEP}
read -r -d '' PAYLOAD <<JSON || true
{
"phone": "${PHONE_NORM}",
"template": "${TEMPLATE_NAME}",
"namespace": "${TEMPLATE_NAMESPACE}",
"language": { "policy": "deterministic", "code": "${TEMPLATE_LANGUAGE}" },
"params": [
{
"type": "body",
"parameters": [
{ "type": "text", "text": "${TEST_CUSTOMERNAME}" },
{ "type": "text", "text": "${TEST_TICKETNUMBER}" },
{ "type": "text", "text": "${TEST_NEXTSTEP}" }
]
}
]
}
JSON
RESPONSE="$(curl -s -w '\n%{http_code}' -X POST "$URL" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer ${API_TOKEN}" \
-d "$PAYLOAD")"
HTTP_CODE="$(printf '%s' "$RESPONSE" | tail -n1)"
BODY="$(printf '%s' "$RESPONSE" | sed '$d')"
case "$BODY" in
*'"sent":true'*) ok=1 ;;
*) ok=0 ;;
esac
if [ "$HTTP_CODE" -ge 200 ] && [ "$HTTP_CODE" -lt 300 ] && [ "$ok" -eq 1 ]; then
echo "Message sent to client."
echo "API response: $BODY"
else
echo "Send failed. HTTP status: $HTTP_CODE" >&2
echo "$BODY" >&2
exit 1
fi
Response and delivery status
HTTP 2xx and JSON "sent": true mean 1MSG accepted the message for sending — not that it already reached the customer's phone. Save the id field (looks like wamid.…) to correlate delivery callbacks.
{
"sent": true,
"message": "Sent to [email protected]",
"description": "Message has been sent to the provider",
"id": "wamid.HBgLMzgwNjM5..."
}sentAccepted for sending — not yet on the customer's phone
idStore it; delivery callbacks and
hookInfoare keyed on this
Common errors
| Status | API response | Cause | Fix |
|---|---|---|---|
| 200 | Message was not sent: template is not defined | namespace, template or language is missing from the request body. | Send all three. Take namespace and the exact template name from GET /templates; language is an object: {"policy": "deterministic", "code": "en"}. |
| 200 | template name (…) does not exist in <language> | The template is approved in a different language than the one requested. | Use the exact language code the template was approved in (for example es_MX is not the same as es). Check it in GET /templates. |
| 200 | Message was not sent: provide chatId, phone, bsuid, or username | No recipient the channel could resolve. | Pass exactly one recipient: phone (country code plus number, digits only), chatId (for example [email protected]) or bsuid. |
