# Error 116: Invalid Birth Date

PayMe's message with `language: "en"`: **Invalid birthdate**

`seller_birthdate` is unreadable, or the person is under 16. `status_additional_info` is `seller_birthdate`.

## Usual causes

- An ISO date: `1990-01-01` gave HTTP 400 in the sandbox.

## What to do

- Send `dd/mm/yyyy`, and validate it before calling. See [Seller Onboarding](/agents/steps/seller-onboarding).

The full list of codes is on [Errors](/payments/getting-started/errors). If something else is going on, see [Troubleshooting by Symptom](/agents/errors/troubleshooting).