WHMCS API Reference

Add Invoice Payment

• https://developers.whmcs.com/api-reference/addinvoicepayment/

Add Order

Please note: Services (tblhosting) returned as comma separated list called productids

Example Response JSON

{
    "result": "success",
    "orderid": "1",
    "productids": "1,2",
    "addonids": "1,2,3",
    "domainids": "1,2",
    "invoiceid": "1"
}

• https://developers.whmcs.com/api-reference/addorder/

Create Invoice

• https://developers.whmcs.com/api-reference/createinvoice/