Update the reason or status for one sender-scoped blacklist entry.
Update Entry
Summary
Update the reason or status for one sender-scoped blacklist entry.
Prerequisites
- Authorization: Bearer w91_live_xxx
- Content-Type: application/json for JSON requests
Related documentation
Endpoint: POST /api/v2/message-blacklist/{blacklistUid}. Only reason and status are editable through public v2. Supported status values are ACTIVE and INACTIVE.
POST
/api/v2/message-blacklist/{blacklistUid}| Parameter | Type | Required | Description |
|---|---|---|---|
Authorization | header | Required | Bearer w91_public_token_here. |
Content-Type | header | Required | Content-Type: application/json. |
blacklistUid | string | Required | Public blacklist entry UID, for example bl_abc. |
senderId | string | Optional | WhatsApp registered sender number. |
reason | string | Optional | Replacement opt-out reason. |
status | string | Optional | ACTIVE or INACTIVE. |
Update entry
curl -X POST "https://graph.whats91.com/api/v2/message-blacklist/bl_abc" \
-H "Authorization: Bearer w91_public_token_here" \
-H "Content-Type: application/json" \
-d '{
"senderId": "916268662275",
"reason": "Updated opt-out reason",
"status": "INACTIVE"
}'Update response
{
"success": true,
"message": "Blacklist entry updated",
"data": {
"blacklistEntry": {
"blacklistUid": "bl_abc",
"reason": "Updated opt-out reason",
"status": "INACTIVE",
"deactivatedAt": "2026-06-06T09:10:00.000Z"
}
},
"metadata": {
"apiVersion": "v2",
"requestId": "request-uuid"
}
}Note
Send at least one editable field. Empty update payloads return VALIDATION_FAILED.
SDK Examples
Use these examples as starting points for server-side implementations.
cURL
curl -X POST "https://graph.whats91.com/api/v2/message-blacklist/{blacklistUid}" \
-H "Authorization: Bearer w91_live_xxx" \
-H "Content-Type: application/json" \
-d '{
"senderId": "916268662275",
"reason": "Updated opt-out reason",
"status": "INACTIVE"
}'Node.js
const response = await fetch("https://graph.whats91.com/api/v2/message-blacklist/{blacklistUid}", {
method: "POST",
headers: {
"Authorization": "Bearer w91_live_xxx",
"Content-Type": "application/json"
},
body: JSON.stringify({
"senderId": "916268662275",
"reason": "Updated opt-out reason",
"status": "INACTIVE"
})
});
const data = await response.json();
console.log(data);PHP
$ch = curl_init("https://graph.whats91.com/api/v2/message-blacklist/{blacklistUid}");
curl_setopt_array($ch, [
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => [
"Authorization: Bearer w91_live_xxx",
"Content-Type: application/json"
],
CURLOPT_POSTFIELDS => json_encode([
"senderId" => "916268662275",
"reason" => "Updated opt-out reason",
"status" => "INACTIVE"
])
]);
$response = curl_exec($ch);
curl_close($ch);
echo $response;Python
import requests
response = requests.request(
"POST",
"https://graph.whats91.com/api/v2/message-blacklist/{blacklistUid}",
headers={
"Authorization": "Bearer w91_live_xxx",
"Content-Type": "application/json",
},
json={
"senderId": "916268662275",
"reason": "Updated opt-out reason",
"status": "INACTIVE"
}
)
print(response.json())C#
using System.Text;
using var client = new HttpClient();
client.DefaultRequestHeaders.Add("Authorization", "Bearer w91_live_xxx");
var request = new HttpRequestMessage(HttpMethod.Post, "https://graph.whats91.com/api/v2/message-blacklist/{blacklistUid}");
request.Content = new StringContent(
"""
{
"senderId": "916268662275",
"reason": "Updated opt-out reason",
"status": "INACTIVE"
}
""",
Encoding.UTF8,
"application/json"
);
var response = await client.SendAsync(request);
Console.WriteLine(await response.Content.ReadAsStringAsync());