| Name | Description | Type | Constraint | MaxLength |
|---|---|---|---|---|
| CustomerCode | This is the customer code, a unique customer ID allocated to a customer when the service is set up | xs:string | Mandatory | 3 |
| Site | This is the site identifier, a unique site ID allocated to a customer when the service is set up. A site can be a till point or a server | xs:string | Mandatory | 15 |
| Culture | This is the language used for messages displayed on the PIN Entry Device | xs:language | Mandatory | 2 |
| Workstation | This is the workstation identifier. The workstation can be a till point or server | xs:string | Mandatory | 50 |
| MerchantId | This is the merchant identification number (MID) assigned to the merchant by the merchant's acquirer | xs:string | Mandatory | 20 |
| Username | This is a username allocated to a service user when the service is set up; it refers to a service account not a person | xs:string | Mandatory | 50 |
| Password | This is a password allocated to a service user when the service is set up; it refers to a service account not a person | xs:string | Mandatory | 50 |
| IpAddress | This is the source of the transaction (a till point or server) | xs:string | Mandatory | 15 |