Parameters Reference

This section lists all required parameters for the Legacy integration method, which uses a Base64-encoded and HMAC-signed payload to redirect customers to the Payblis hosted payment page.

Parameter	Type	Description	Required
MerchantKey	String	Your merchant identification key	Yes
amount	String	Transaction amount (XX.XX)	Yes
RefOrder	String	Unique order reference	Yes
Customer_Email	String	Customer’s email	Yes
Customer_Name	String	Customer’s name	Yes
Customer_FirstName	String	Customer’s first name	Yes
store_name	String	Store/business name	Yes
urlOK	String	Success callback URL	Yes
urlKO	String	Failure callback URL	Yes
ipnURL	String	IPN callback URL	Yes
signature	String	HMAC-SHA256 signature	Yes