---
metadata:
- name: generator
content: Diplodoc Platform v5.50.6
alternate:
- https://yandex.com/support/direct/en/feeds/validate.md
- https://yandex.com/support/direct/ru/feeds/validate.md
- https://yandex.com/support/direct/tr/feeds/validate.md
- https://yandex.com/support/direct/zh/feeds/validate.md
---
> **Documentation Index:** Fetch the complete configuration index at https://yandex.com/support/direct/en/llms.txt
# Validate a file
The following are verified when your file is read:
- That all required elements are present.
- all element names are correct.
- Each element is only present once
If any of these requirements is not met, your file will be rejected.
If you change the link or authorization parameters, your file will automatically get sent for repeat validation.
#### Have questions? {#questions}
{% note alert %}
Our customer support can only assist you with campaigns linked to the username you are contacting us from. You can check your username by opening [ya.ru](http://ya.ru/) in another browser tab. Our team can access your data only when processing your request.
{% endnote %}
Scan the QR code or tap it to follow the link.
If you select Telegram or WhatsApp, keep in mind that Yandex does not control and is not liable for how third-party messengers store your data and chat history.
{% cut "Call" %}
You can contact us from 10:00 to 19:00 (UTC+3) by phone:
**Moscow**: [+7 495 139-91-93](tel:+74951399193)
**Russia**: [8 (800) 700-47-45](tel:88007004745) (toll-free within Russia)
To access campaigns, the customer service specialist will need your [PIN](https://yandex.com/support/direct/en/troubleshooting/pin-code.md).
{% endcut %}
{% cut "Leave a message" %}
{% endcut %}
