Unable to send messages - status 0 / messageStubParameters 463 on Evolution API v2.3.7

No source file or test is named. Start by reproducing an outgoing message through the REST API and Evolution Chat, then inspect the reported status 0 and messageStubParameters ["463"] logs. Done means outgoing messages are delivered successfully through both paths without remaining PENDING.

Welcome!

• Yes, I have searched for similar issues on GitHub and found none.

What did you do?

I installed Evolution API v2.3.7 on EasyPanel using Docker.

The WhatsApp instance connects successfully and receives incoming messages normally.

However, it cannot send outgoing messages.

The problem happens both when sending messages from the Evolution Chat interface and through the REST API.

I tested with multiple phone numbers.

The same WhatsApp account can send messages normally using the official WhatsApp mobile application.

What did you expect?

Outgoing messages should be delivered successfully through Evolution Chat and the REST API.

What did you observe instead of what you expected?

The API returns PENDING.

Evolution attempts to send the message but it is never delivered.

The logs always end with:

status: 0

messageStubParameters:
[
"463"
]

Incoming messages continue working normally.

Screenshots/Videos

Which version of the API are you using?

2.3.7

What is your environment?

Windows

Other environment specifications

• EasyPanel
• Docker
• PostgreSQL
• Redis
• WhatsApp Personal (not Business)
• The issue happens both in Evolution Chat and REST API.
• Incoming messages work normally.
• Outgoing messages from the WhatsApp mobile app work normally.
• The instance is not connected to any other WhatsApp automation.

If applicable, paste the log output

Sending message to 554796512029@s.whatsapp.net

status: 1

Update messages

{
"update": {
"status": 0,
"messageStubParameters": [
"463"
]
}
}

Additional Notes

Additional information:

• Evolution API version: 2.3.7
• The instance connects successfully.
• Incoming messages work correctly.
• Outgoing messages only fail when sent through Evolution API.
• Sending messages directly from the official WhatsApp mobile app works normally.
• I disconnected the instance, removed the linked device from WhatsApp and connected again using a new QR Code.
• I restarted the container and tested both Evolution Chat and the REST API.
• The issue persists and always ends with status 0 and messageStubParameters ["463"].
• The WhatsApp account is a personal account (not Business).
• The WhatsApp account is not connected to any other automation platform.