---
page_type: error
code: 50401
message: "50401: Programmable Chat: Member SID not provided"
level: ERROR
product: Programmable Chat
---

## Error - 50401

### Programmable Chat: Member SID not provided

#### Possible Causes

- Request does not contain required Member SID parameter.

#### Possible Solutions

- Confirm a valid Member SID is being passed in request.