About this guide
Changes
Version history.
Version |
Change Description |
Date |
---|---|---|
5.13
|
Updated the links to external documents in the RealNet Payments footers (changed to non-FIS addresses). |
May 2025
|
Added note to Date of Birth field in the Adding a Sub-Merchant topic related to validation of dates entered. |
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5.12
|
Added information on Multi-Factor Authentication when Logging in and Logging Out of the PayFac Portal. |
April 2025
|
Updated the address for RealNet Payments in the footer of this page. |
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5.11
|
Added a new merchant category type - Mastercard Small Merchant (MCSI) to the Adding a Sub-Merchant topic. |
March 2025
|
Updated screenshots for the Add a Sub-Merchant, View a Sub-Merchant, and Edit a Submerchant topics. |

Version |
Change Description |
Date |
---|---|---|
5.10
|
Updated information and screenshots on Sub-Merchant Payment Processing Configuration Panel and Legal Entity and Background Check Results Panels. |
February 2025
|
Corrected descriptions in Adding a Sub-Merchant screen for EIN/Tax ID and SSN. |
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5.9 |
Added information on new fields (Country of Origin, Enable Revenue Boost, and PCI Level) to the Adding a Sub-Merchant screen. |
January 2025 |
5.8 |
Added information about maximum allowable digits in the amount field when Adding a Sub-Merchant. |
September 2024 |
5.7 |
Clarified requirements for Social Security number for principal owner(s) when Adding a Sub-Merchant and Creating a New Legal Entity Request. |
May 2024 |
5.6 |
Added information on new fields, Merchant Category Type and Payment Type Processing Status to the Sub-Merchant Payment Processing Configuration Panel, Adding a Sub-Merchant, and the Editing or Disabling a Sub-Merchant topics. |
March 2024 |
5.5 |
Added information on URL structure when Adding a Sub-Merchant. |
June 2023 |
5.4 |
Updated Worldpay eComm Dynamic Payout Information document name reference to reflect changes due to the transfer of U.S. Dynamic Payout processing services to RealNet Payments LLC, a licensed money transmitter in the jurisdictions listed here. |
June 2022 |
5.3 |
Added information on the addition of a new search term for the sub-merchant search function: Amex Seller ID. |
February 2022 |
5.2 |
Added information on FraudSight to the Enable Fraud field in the Adding a Sub-merchant screen. |
August 2021 |
5.1 |
Added information on the addition of the Legal Entity ID field to the search function. Also added information on new fields included in the search export CSV report (Legal Entity ID and Request Date). |
July 2021 |
5.0 |
Rebranded for FIS and converted to online format. |
February 2021 |
4.8 |
Added information on required fields for Visa transactions (Principal Contact Phone and Email address). Also added notes on using P.O. boxes for sub-merchant and legal entity addresses (prohibited). |
March 2020 |
4.7 |
Added information on concurrent limits when adding or editing sub-merchants. |
February 2020 |
4.6 |
Updated screen-shots and format |
October 2019 |
4.5 |
Added a note on using the paste function to enter data in the Merchant Name field. |
September 2019 |
4.4 |
Added information on fields that trigger a manual review. |
August 2019 |
4.3 |
Added information on the Title field for Legal Entity Principals if no value is entered. |
May 2019 |
4.2
|
Updated the description of the ‘Amex Acquired’ checkbox in the Adding a Sub-Merchant screen for clarification. |
May 2019 |
Added information on stake holders when the organization is a non-profit or government agency. |
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4.1
|
Updated screenshots with new iQ design (due to Vantiv-Worldpay merger). |
March 2019
|
Updated Contact Information. |
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4.0 |
Re-branded entire document format due to the Vantiv-Worldpay merger; replaced many instances of the 'Vantiv' with 'Worldpay.’ Replaced some instances of ‘PayFac’ to ‘Payment Facilitator’ due to change in product name usage. |
October 2018 |
3.8
|
Added information on supported browsers due to TLS 2.1 requirements. |
February 2018
|
Added information on maximum number or Principal Owners that can be configured; updated Add a Sub-Merchant, Edit a Sub-Merchant, and Edit a Legal Entity screenshots to reflect changes in the interface. |
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Added a Note and information on designating the controlling Principal when creating a Legal Entity. |
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3.7
|
Updated note related to API V12 compatibility. |
June 2017
|
Updated PayFac Account Management Contact from PayFacEcomm@Vantiv.com to PayFacEcommerce@Vantiv.com |
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Updated all occurrences of LitleXML to cnpAPI, due to a change to the product name. |
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3.6 |
Updated the URL for access to the PayFac Portal (due to retirement of Litle domain).The URL is changed from: https://psp.litle.com/metaui/ to https://payfac.vantivcnp.com/metaui/login. |
April 2017 |
3.5 |
Added a note about blanking out fields with the Edit Sub-Merchant function. |
March 2017 |
3.4 |
Updated the list of Legal Entity Business types available (due to support of Canadian-domiciled sub-merchants). |
February 2017 |
3.3
|
Updated contact e-mails, phone numbers, and hours of operation in the Contact Information section. |
January 2017
|
Added information on a new requirement to provide a title for an associated principal if your organization is boarding American Express OptBlue sub-merchants. |
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3.2 |
Added two new fields to the Adding a Sub-Merchant section related to Merchant Category Code 9311: Tax Authority and Tax Authority State. |
January 2017 |
3.1
|
Changed support@litle.com e-mail address to eCommerceSupport@vantiv.com in the Contact Information. Also added new contact information for PayFac Relationship Management/Customer Service. |
October 2016
|
Updated information on masking of answers to security questions. |
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Added information to the billing descriptor and billing descriptor prefix fields in the Add Sub-Merchant screen. |
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Added information on whether certain fields are required under certain circumstances. |
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3.0 |
Updated all chapters to incorporate changes related to PayFac API V12.0. |
June 2016 |
Legal
© Worldpay 2025, and/or its subsidiaries. All rights reserved.
Worldpay (UK) Limited (Company No. 07316500 / FCA No. 530923), Worldpay Limited (Company No. 03424752 / FCA No. 504504), Worldpay AP Limited (Company No: 05593466 / FCA No: 502597). Registered Office: The Walbrook Building, 25 Walbrook, London EC4N 8AF and authorised by the Financial Conduct Authority under the Payment Service Regulations 2017 for the provision of payment services. Worldpay (UK) Limited is authorised and regulated by the Financial Conduct Authority for consumer credit activities. VAT number: 991 2802 07
Worldpay B.V. has its registered office in Amsterdam, the Netherlands (Handelsregister KvK no. 60494344). WPBV holds a licence from and is included in the register kept by De Nederlandsche Bank, which registration can be consulted through www.dnb.nl.