With the URL parameter, default values can be set in Frontend in the payment form. The following overview shows which parameters can be entered for certain entry fields.
| Name | Parameter |
| Number | invoice_number |
| Amount | invoice_amount |
| Currency | invoice_currency |
| Salutation | contact_title |
| First name | contact_forename |
| Last name | contact_surname |
| Company | contact_company |
| Street | contact_street |
| Zip code | contact_postcode |
| Place | contact_place |
| Country | contact_country |
| Telephone | contact_phone |
| contact_email |
Application example:
The URL https://yourname.payrexx.com/de/pay?invoice_number=987654321&invoice_amount=450.00&invoice_currency=CHF cause, for example such fields as „name“, „amount“ und „currency“ keep default values „987654321“, „450.00“ und „CHF“.