---
page_type: error
code: 50405
message: "50405: Programmable Chat: Invalid last consumption timestamp format"
level: ERROR
product: Programmable Chat
---

## Error - 50405

### Programmable Chat: Invalid last consumption timestamp format

#### Possible Causes

- Request does not contain correctly formatted parameter for last consumption timestamp

#### Possible Solutions

- Confirm a valid parameter is passed in request.