---
title: "Client Validate"
method: POST
path: "/pws/client/validate/"
tags: ["VCAS"]
---

# Client Validate

`POST /pws/client/validate/`

## Request

- Base URL: `https://api.uat.paymentology.com/ppws/api`
- URL: `https://api.uat.paymentology.com/ppws/api/pws/client/validate/`
- Auth: none declared

Client Validate acts as a webhook that is triggered by the client to inform us if the user has successfully completed the stepup challenge.

## Request body

- ClientValidateRequest
  - `api_call_unique_identifier` string, required: Unique number that must be passed at each API request. Identifier to make each API request unique
  - `authenticationStatus` string, required: Indicates whether the user was successfully authenticated or not. 00 - Success, 01 - Declined
  - `clientId` integer, required: ClientId assigned to the client by Paymentology system.
  - `stepupRequestId` string, required: Unique identifier to identify the particular Stepup request. Length will be 36 Characters.
  - `transactionId` string, required: VCAS generated transaction reference id. Length - Up to 36 Characters.
  - `additionalData` string: Additional data that may be used in the future.

## Response `200`

Successful Response

- ClientValidateResponse
  - `additionalData` string, required: Additional data that may be used in the future.
  - `clientId` integer, required: Echoed from request. ClientId assigned to the client by Paymentology system.
  - `stepupRequestId` string, required: Echoed from request. Unique identifier to identify the particular Stepup request. Length will be 36 Characters.
  - `transactionId` string, required: Echoed from request. VCAS generated transaction reference id. Length - Up to 36 Characters.

## Other responses

- `404`: Webservices does not exist
- `500`: Internal Server error

## Changes

- **2026-11-03** `73c2771493b1`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/paymentology/apis/payapi-docs/changes/pws/client/validate/post.md)

---

[API](https://skmtc.dev/paymentology/apis/payapi-docs.md) - [All operations](https://skmtc.dev/paymentology/apis/payapi-docs/llms.txt) - [OpenAPI document](https://skmtc.dev/paymentology/apis/payapi-docs/revisions/73c2771493b1?raw)