OMS further expands Nationwide Building Society functionality following initial integration success

05 June 2025

Following the success of its initial integration, and in direct response to user feedback, One Mortgage System (OMS) has expanded the functionality of its full application programming interface (API) link with Nationwide.

Brokers using OMS can now submit Decisions in Principle (DIPs) for all Nationwide’s mortgage applicants, including self-employed, contractors, foreign nationals and those looking for interest-only. The integration now supports key product options, such as Helping Hand and Extra Help, making it easier to meet a broader range of client needs.

In addition, Product Reservations can now be undertaken within the OMS platform, which will save brokers and clients more time and remove any concerns about interest rate changes.

The process has been carefully refined to make submissions faster and more accurate. Fact find information from OMS is passed directly to Nationwide without the need to rekey data into Nationwide for Intermediaries (NFI) Online. This means a DIP can be submitted in just a few clicks, removing the 30-minute duplication brokers previously faced. Once submitted, Nationwide’s decision is returned directly into the OMS platform, allowing brokers to review, amend and resubmit if necessary.

Brokers will also receive a DIP certificate within OMS if required. When they proceed to full application, all personal information and lending requirements are transferred automatically to NFI Online. Any supporting documents can be quickly requested from the client using the integrated checklist step, keeping the process joined up and efficient.

Neal Jannels, Managing Director of One Mortgage System, commented:

“We’re always listening to what our lending partners and our users need and this speedy upgrade to the initial Nationwide integration reflects that. The result is a more complete, end-to-end journey for a wider variety of cases. It streamlines submissions and removes duplication, helping brokers and clients reach the right outcome more quickly and accurately.”

“Our platform continues to evolve in line with broker needs and lender collaboration, and this is another key step in delivering a joined-up solution across the market.”

Andy Tilsley, Nationwide’s Head of Intermediary Digital, said:

“We continue to support the intermediary market by making it easier and quicker for brokers to do business with us. We’ve worked closely with OMS to enhance the digital journey to improve the quality of submission and save broker’s time. Today’s announcement represents a significant milestone, and we will look to build on this through further collaboration.”