---
url: >-
  https://acquirer-api-docs-v4-en.pingpongx.com/en/notes/technicalterm/accId/index.md
description: >-
  accId is the PingPong merchant shop number, serving as the unique identifier
  for merchants on the PingPongCheckout platform. This identifier can be
  obtained after completing PingPong merchant registration, and registered users
  can view it by logging into the merchant backend.
---
## Meaning of accId
accId is the PingPong merchant shop number, serving as the unique identifier for merchant shops in PingPongCheckout

## How to Obtain accId
You need to complete PingPong merchant registration before you can obtain it. You can refer to the <a href="/en/notes/appendix/register/" target="_blank">registration process</a>.
Users who have already completed registration can directly log in to the <a href="https://checkout.pingpongx.com/aq/login" target="_blank">merchant backend</a> to obtain it. The location for obtaining it is shown in the screenshot below:

<v4-iImage src = "/register/accId.png" name="accId Acquisition"></v4-iImage>