Defining a different amount for the first n installments
You wish to set up a recurring payment for which the amount of the first installment(s) would differ from the ones configured by the vads_sub_amount field.
Example: define a recurring payment with the first 3 installments equal to EUR 45.25,and the remaining installments equal to EUR 75.90.
To do so:
Form example:
<form method="POST" action="https://sogecommerce.societegenerale.eu/vads-payment/"> <input type="hidden" name="vads_action_mode" value="INTERACTIVE" /> <input type="hidden" name="vads_capture_delay" value="0" /> <input type="hidden" name="vads_ctx_mode" value="TEST" /> <input type="hidden" name="vads_currency" value="978" /> <input type="hidden" name="vads_cust_country" value="FR" /> <input type="hidden" name="vads_cust_email" value="exemple@gmail.com" /> <input type="hidden" name="vads_cust_first_name" value="Paul" /> <input type="hidden" name="vads_cust_last_name" value="Juve" /> <input type="hidden" name="vads_cust_title" value="M." /> <input type="hidden" name="vads_page_action" value="REGISTER_SUBSCRIBE" /> <input type="hidden" name="vads_payment_config" value="SINGLE" /> <input type="hidden" name="vads_site_id" value="91335531" /> <input type="hidden" name="vads_trans_date" value="20190716080441" /> <input type="hidden" name="vads_trans_id" value="362812" /> <input type="hidden" name="vads_validation_mode" value="0" /> <input type="hidden" name="vads_sub_currency" value="978" /> <input type="hidden" name="vads_sub_init_amount_number" value="3" /> <input type="hidden" name="vads_sub_init_amount" value="2500" /> <input type="hidden" name="vads_sub_amount" value="3000" /> <input type="hidden" name="vads_version" value="V2" /> <input type="hidden" name="signature" value="G6oZchxNT+ySm7YQ/zvQvfgxmOmubvZ0lPwFKKVUSyI="/> <input type="submit" name="payer" value="Pay"/> </form>