# Validations Request
source: https://developer.mastercard.com/community-pass-payment-apis/documentation/parameters/validation_request/index.md

|        Name         |  Type  |                    Description                     |    Notes     |
|---------------------|--------|----------------------------------------------------|--------------|
| **appId**           | string | Application identifier for client.                 | **Required** |
| **partnerId**       | string | Code to identify partner.                          | **Required** |
| **accountId**       | string | Account Number being validated. E.g: student id.   | **Required** |
| **partnerType**     | string | Partner type can be SCHOOL/BUYER/CHANNEL/SUPPLIER. | **Required** |
| **correlationId**   | string | Unique identifier to track payment request.        | **Required** |
| **transactionTime** | string | Transaction time.                                  | **Required** |
| **paymentChannel**  | string | Depicts mode of payment (MOBILE or BANK).          | **Required** |