Tax Calculation

OrderCentral calculates VAT based upon the country of the shipment address and the corresponding VAT Rule. If this is not per your requirements there is the option to write you own logic to calculate VAT. This article describes how to do this.

All referenced class names are within the welisacommerce namespace

Create a new Apex class and have it implement the ITaxCalculator interface
Implement your logic and return an instance of TaxCalculationResponse (all properties are required
Register your class within the OrderCentral plugin registrations
1. Setup -> Custom Metadata Types -> Plugin Registrations -> New
2. In the Plugin field select pluging with name ITaxCalculator
3. Save

TaxCalculationRequest

Property Name	Type
accountDetail	AccountDetail
shippingDetail	ShippingDetail
orderProducts	List<OrderProductDetail>

TaxCalculationResponse

Property Name	Type
totalTaxAmount	Decimal
shippingTaxAmount	Decimal
productTaxDetails	List<ProductTaxDetail>

AccountDetail

Property Name	Type
accountId	Id
billingAddress	AddressDetail

ShippingDetail

Property Name	Type
address	AddressDetail
customFields	CustomFields
deliveryMethod	DeliveryMethod

OrderProductDetail

Property Name	Type
productCode	String
quantity	Decimal
totalAmount	Decimal

AddressDetail

Property Name	Type
city	String
country	String
postalCode	String
state	String
street	String

DeliveryMethod

Property Name	Type
name	String
price	Double

CustomFields

| Method Name | Argument | Return Value |
| --- | --- |
| getValue | fieldApiName (String) | object |

ProductTaxDetail

Property Name	Type
productCode	String
taxAmount	Decimal