Prepopulating added extra fields using url encoding


#1

i am integrating paynow with an ecomerce site. I am using Link buttons to create an integration with my system. I have created extra fields called reference and invoice_id. I want to automatically pass values to this fields which are comming from my system/shop so i have followed the documentation for URL ENCODING however upon trying to pass all field s which are “id={id}&amount={amount}&reference={reference}&invoice_id={invoice_id}&l=1” only the amount is being populated and the reference and invoice id are not. I need to prepopulate all these fields because if i do not do so this will cause problems when authenticating the transaction on my system can you please assit


#2

The screenshot above is for the fields. I have changed it also from the locked l=1 to l=0 but the result is the same. Kindly assist