---
metadata:
  - name: generator
    content: Diplodoc Platform v5.48.2
alternate:
  - https://yandex.uz/support/split-business/en/glossary.md
  - https://yandex.uz/support/split-business/ru/glossary.md
  - https://yandex.uz/support/split-business/uz/glossary.md
---
> **Documentation Index:** Fetch the complete configuration index at https://yandex.uz/support/split-business/en/llms.txt


# Glossary

**Acquiring** — the bank that handles a payment.

**Issuing bank** — the bank that issued a customer's bank card.

**2FA** — two-factor authentication.

**3-D Secure (3DS)** — the protocol for card owner verification by the issuing bank.

<br>

**Partner** — a Yandex business partner that has activated or plans to activate Yandex Split services.

**Customer** — a client the partner is providing a service or selling a product to.

**Personal account** — the Yandex Split partner dashboard.

**Application** — a form through which the partner applies for Yandex Split activation. Filled out and submitted in the Yandex Split partner personal account.

**Account** — a user account in the Yandex Split partner's account.

**Selector** — a drop-down list that allows switching between stores or legal entities in the Yandex Split account.

<br>

**Payment** — a transaction that charges funds from the customer's card or account.

**Order** — a product or service that the customer intends to purchase from the seller.


**Split** — payment for an order in parts.

**Payment schedule** — the schedule selected by the user when paying for their order via Split.

**Operation** — an action with an order. Example operations: payment, refund, or order cancellation.

**Operation polling** — the process of checking whether an operation has been completed.

**Refund** — a full or partial return of funds to the customer for an order.


**One-step payment** — payment for an order completed in one stage, without prior authorization of funds.


<br>

**Callback URL** — the URL in the partner API used for handling incoming requests from Yandex Split.

**Notification** — a request sent from Yandex to the partner's Callback URL.

**Client ID** — a personal ID that is issued by the [system of external app access registration](https://oauth.yandex.uz/). Specified by the partner in the Yandex Split personal account, the Settings section.

**Merchant ID** — the partner store ID. Specified in the Yandex Split partner's personal account, the Settings section, at the store level.