---
metadata:
- name: generator
content: Diplodoc Platform v5.52.0
alternate:
- https://yandex.com/support2/audience/en/file.md
- https://yandex.com/support2/audience/ru/file.md
- https://yandex.com/support2/audience/tr/file.md
- href: en/file.md
type: text/markdown
title: Markdown version
- href: llms.txt
type: text/markdown
title: llms.txt
---
> **Documentation Index:** Fetch the complete configuration index at https://yandex.com/support2/audience/en/llms.txt
# File requirements
Select the type of data to be uploaded:
- [CRM data](#crm)
- [Mobile device IDs](#device-id)
## CRM data {#crm}
#|
|| **Expansion** | CSV ||
|| **Maximum size** | 1 GB ||
|| **Encoding** | UTF-8 or Windows-1251 ||
|| **Entry format** |
The first data string should list the field names, separated by commas. Each data string is a separate client entry (multiple anonymous IDs can be found for one string). Entry fields are separated by commas.
Field values can be hashed (SHA-256). To make sure that values are processed correctly, when creating a segment, enable the **Hashed data** option and select the appropriate hashing algorithm.
{% note warning %}
Starting January 2025, uploading new MD5 hashes is no longer supported. To upload new data, use SHA‑256.
{% endnote %}
The entry must contain at least one of these fields: `phone`, `email`. The remaining fields are optional.
#|
|| `phone` |
Phone number.
A string of numbers that contains the mobile phone number and country code. You cannot insert spaces or use additional symbols.
`79995551111`
`7 (999) 555-11-11` ||
||`email` |
Email address.
A string of Latin characters, including the @ symbol and the domain name. You cannot use uppercase letters.
`mail@yandex.ru`
`Mail@yandex.ru` ||
|| `external_id` |
The client ID in the CRM.
Alphanumeric string without spaces or extra characters.
There are other fields that contain information about the client, such as the client's gender or date of birth. ||
|#
{% cut "Example of an entry without hashed values" %}
```no-highlight
external_id,phone,email,gender,birthdate
1,79876543210,mail@yandex.ru,M,01.01.1970
2,79012345678,example2@yandex.ru,F,01.01.1980
```
{% endcut %}
{% cut "SHA-256 hashing example" %}
```no-highlight
external_id,phone,email,gender,birthdate
1,90f42df8309cc6c1dfd430a3f4ea7d6bfaa19f1853c6d16ec5ca30b40006476a,b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9,M,01.01.1970
2,d5579c46dfcc7f18207013e65b44e4cb4e2c2298f4ac457ba8f82743f31e930b,d3920c46dfcc7f18207013e65b44e4cb4e2c2298f4ac457ba8f23482f31e327b,F,01.01.1980
```
{% endcut %} ||
|| **Minimum number of entries** | 100 ||
|#
## Mobile device IDs {#device-id}
#|
|| **Expansion** | CSV or TXT ||
|| **Maximum size** | 1 GB ||
|| **Encoding** | UTF-8 or Windows-1251 ||
|| **Entry separator** |
{% cut "Comma" %}
```
aaaaaaaa-bbbb-cccc-1111-222222222200,aaaaaaaa-bbbb-cccc-1111-222222222201
```
{% endcut %}
{% cut "Line break" %}
```
aaaaaaaa-bbbb-cccc-1111-222222222200
aaaaaaaa-bbbb-cccc-1111-222222222201
```
{% endcut %}
{% cut "Tab" %}
```
aaaaaaaa-bbbb-cccc-1111-222222222200 aaaaaaaa-bbbb-cccc-1111-222222222201
```
{% endcut %} ||
|| **Entry format** |
#### **Android (GAID)**
Lowercase alphanumeric string separated by hyphens.
`aaaaaaaa-bbbb-cccc-1111-222222222200`
#### **iOS (IDFA)**
Uppercase alphanumeric string separated by hyphens.
`AAAAAAAAA-BBBB-CCCC-1111-222222220000`
`aaaaAAAAABBBBCCCC1111222222220000`
Data in your file can be hashed (SHA-256). In this case, each entry must be hashed separately.
{% note warning %}
Starting January 2025, uploading new MD5 hashes is no longer supported. To upload new data, use SHA‑256.
{% endnote %}
{% cut "SHA-256 hashing example" %}
```no-highlight
7f5a79d4db79f26ed3c0561ac2fa6d67dd5d37671a5a49485a0ad1b98250177f
e61ac33a64f562fbc02e3c6eaab03ef9fa9c3a142a3492bde07339fe45e9fd7a
91cf462f2f542a7e6f19ef7f0b5d0d046cc566cc4da58d3a62a48c5a6fa24de5
```
{% endcut %}
||
|| **Minimum number of entries** | 100 ||
|#
## Still have questions? {#all-pages}
{% note alert %}
Customer support agents can only assist you with campaigns associated with your username. You can see your current username it in the upper-right corner of the screen. The agent will get access to your data only when processing your request.
{% endnote %}
{% cut "Call" %}
You can reach us from 10:00 to 19:00 GMT +3 (Moscow time) at:
**Moscow**: [+7 495 139-91-93](tel:+74951399193).
**Russia**: [8 800 700-47-45](tel:88007004745) (toll-free inside Russia).
To access your campaigns, the agent will need a [PIN code](https://yandex.com/support/direct/troubleshooting/pin-code.html).
{% endcut %}
{% cut "Write a message" %}
{% endcut %}
[](http://audience.yandex.com/)
Go to WhatsApp
{% endcut %}