Description
When trying to send a text message using the POST /api/sendText endpoint, the API responds with HTTP 500 and the following internal gRPC error:
This happens even when the session is valid and running.
Affected Endpoint
POST /api/sendText
Request Payload
{
"chatId": "558688755485@c.us",
"text": "Oii",
"session": "FA8E1730-6A62-485C-BDF3-5626F231F3A5"
}
Response
{
"statusCode": 500,
"timestamp": "2026-02-10T23:38:04.173Z",
"exception": {
"message": "2 UNKNOWN: server returned error 463",
"code": 2,
"details": "server returned error 463",
"metadata": {},
"name": "Error"
}
}
Expected Behavior:
The text message should be sent successfully and the endpoint should return HTTP 201, as documented for /api/sendText.
Actual Behavior:
The API returns HTTP 500 with an internal gRPC error, preventing the message from being sent.
Environment
- WAHA version: 2026.1.5 or 2026.2.1
- Engine: GOWS
- Tier: PLUS
- Platform: linux/x64
- Worker: wh-w10
- Browser: null
- Deployment: Docker
Additional Notes:
- The endpoint usage matches the Swagger specification (POST /api/sendText).
- chatId format is valid (@c.us).
- The session exists and is in a working state.
- The error seems to originate from the internal gRPC layer (MessageServiceClient.SendMessage).
[](https://waha.devlike.pro/docs/how-to/plus-version/#tiers)
Description
When trying to send a text message using the
POST /api/sendTextendpoint, the API responds with HTTP 500 and the following internal gRPC error:This happens even when the session is valid and running.
Affected Endpoint
POST /api/sendTextRequest Payload
{ "chatId": "558688755485@c.us", "text": "Oii", "session": "FA8E1730-6A62-485C-BDF3-5626F231F3A5" } Response { "statusCode": 500, "timestamp": "2026-02-10T23:38:04.173Z", "exception": { "message": "2 UNKNOWN: server returned error 463", "code": 2, "details": "server returned error 463", "metadata": {}, "name": "Error" } } Expected Behavior: The text message should be sent successfully and the endpoint should return HTTP 201, as documented for /api/sendText. Actual Behavior: The API returns HTTP 500 with an internal gRPC error, preventing the message from being sent. Environment - WAHA version: 2026.1.5 or 2026.2.1 - Engine: GOWS - Tier: PLUS - Platform: linux/x64 - Worker: wh-w10 - Browser: null - Deployment: Docker Additional Notes: - The endpoint usage matches the Swagger specification (POST /api/sendText). - chatId format is valid (@c.us). - The session exists and is in a working state. - The error seems to originate from the internal gRPC layer (MessageServiceClient.SendMessage). [](https://waha.devlike.pro/docs/how-to/plus-version/#tiers)