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FlexPay Gateway
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Written by Support
Updated over a week ago

January 29, 2018

UPDATED April 30, 2024

To configure FlexPay Gateway into your platform:

  • Go to Payments - Gateways, under ACTIONS select Add New Provider Profile

  • Select the type = Payment/Gateway and select FlexPay from the drop down

  • Fill out the gateway parameters which are outlined below and click “Save”.

For more information on this Gateway click here

API Key: This will be provided to you by FlexPay.

Currency: This gateway supports USD currency only.

CIT/MIT Parameters: NOTE: This feature only works with NMI gateway transactions. If you select YES - the CIT/MIT parameters will be sent to Flexpay. If you select No the parameters will not be sent.

Test Mode: Set to YES if you want to use this gateway in test mode.

*Note* - Please note that if you are using FlexPay, then the FlexPay retry will take precedence over’s Decline Manager.

This is a Value Added Service of If you are interested in using this gateway, please contact


There are 2 Required Fields on the Merchant Account Details tab. *Descriptor - This will be the MID Descriptor and *Customer Service Number - The customer service number assigned to the MID.

There is 1 Required Field on the Limits and Fees tab *Global Monthly Cap - This will be the sales amount allowed monthly on this MID 

To maximize the efficiency of Reporting Analytics we suggest you take a moment and fill out the rest of the fields. These will all be used in’s profitability reports.

For field definitions on all of the fields on the Merchant Account Details Tab and the Limits & Fees Tab - click here- overview of gateway providers

Once your gateway profile has been created, then you will go through your campaigns and assign the gateway to the corresponding campaign(s).

Please note that the following decline and error responses will trigger the related subscription to automatically be placed on hold:

  • Hard Declines (codes starting with 3xxxx)

  • Risk Responses (codes starting with 4xxxx)

  • API Validation Errors (codes starting with 5xxxx)

See FlexPay documentation for all related response codes.

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