Resolve REST API custom integrations are designed for B2B merchants that need net terms, receivables automation, and payment workflows inside a custom stack. If your team runs a proprietary OMS, a custom storefront, an internal procurement workflow, or a non-standard ERP setup, Resolve gives you a flexible way to connect buyer credit decisions, invoicing, collections, and reconciliation without forcing a platform change. Rather than treating credit, payments, and accounts receivable as separate systems, Resolve brings them together in one embedded workflow built for B2B commerce.
That matters because extending terms manually creates two problems at once: slower cash flow for the seller and more operational complexity for the finance team. Resolve is built to address both. It helps merchants offer net terms, automate parts of the credit and receivables lifecycle, accept buyer payments through a branded portal, and connect those workflows to ecommerce, ERP, and accounting systems through native integrations and flexible APIs. For teams outside Resolve’s standard connector set, custom integrations are the path to bringing the same capabilities into an existing environment. This guide explains where custom integrations fit, what to prepare before implementation, how the end-to-end workflow typically works, and which claims you should verify directly in the official developer documentation before going live.
Resolve already offers integration options for platforms such as Shopify, BigCommerce, Magento 2, WooCommerce, QuickBooks Online, Xero, NetSuite, and Sage Intacct. If your stack is already supported, that is usually the fastest route to launch.
Custom integrations make sense when your workflow falls outside that list or when your business logic is more complex than a standard connector can handle.
For teams in these categories, Resolve’s integrations platform and B2B net terms infrastructure give you a way to embed credit, payments, and receivables into the systems you already use.
Before planning a custom Resolve integration, make sure the project is a fit operationally and commercially.
If you are still evaluating architecture, review the developer documentation, the integrations overview, and Resolve’s accounts receivable automation product pages first.
At a high level, a custom integration connects four parts of the B2B transaction lifecycle:
Resolve’s product materials consistently position the platform as a system that combines credit, invoicing, collections, and payments in one workflow. That means your integration should be designed around the full order-to-cash process rather than a single API call.
A typical implementation looks like this:
That architecture is why Resolve is often described as an embedded B2B payments platform rather than just a financing tool. The B2B payments platform and accounts receivable automation pages both emphasize reconciliation, invoicing, collections, and payment workflows as part of the same system.
The exact field mapping depends on your environment, but most custom integrations need to sync a consistent set of business objects.
Your integration may need to pass business identity and account data so Resolve can support credit and workflow decisions. Resolve’s business credit check materials describe streamlined business credit checks and note that only limited business information may be needed in some workflows.
Your system should define how purchase orders, invoice numbers, due dates, payment status, and internal customer IDs map to Resolve. This matters because receivables automation only works cleanly when your order and invoice records are stable and uniquely identifiable.
If finance teams still need to manually re-enter buyer payments, funding activity, or status updates, the integration is incomplete. Resolve’s accounts receivable automation and net terms management pages both frame reconciliation and collections as core parts of the product, not optional add-ons.
One reason teams pursue custom integrations is to keep the buyer experience inside their own systems while still using Resolve for net terms and credit workflows.
Resolve positions itself as the merchant’s embedded credit team. Its product materials describe AI-supported underwriting, dynamic credit decisions, and a workflow that combines automated signals with finance-oriented controls. For some credit-check flows, Resolve states that a business name and address may be enough to begin assessment through its business credit check workflow.
Resolve’s net terms materials state that sellers can offer terms such as Net 30, Net 45, Net 60, and Net 90, while Resolve helps support cash flow and reduce risk through its non-recourse model. Product pages also note that advance pay can be up to 100% on approved invoices, though the exact structure depends on underwriting, the product used, and the buyer profile.
Resolve also handles key downstream workflows. Its product materials describe payment reminders, collections support, and branded payment experiences that can accept ACH, wire, credit card, and check depending on the workflow. That is important in a custom integration because your team does not need to rebuild every part of the buyer payment experience from scratch.
Security language should stay tightly grounded in what Resolve publicly states and in the current developer documentation.
Do not publish or document unsupported claims about exact rate limits, authentication schemes, certification status, webhook header names, retry timing, or load-testing allowances unless those details are confirmed in the current official documentation. Resolve’s context materials support the platform’s non-recourse model and embedded workflow, but they do not explicitly verify broad PCI, ISO, or SOC claims in the extracted source set.
A strong Resolve integration does more than create records. It makes finance and operations cleaner after launch.
The choice is not always custom build versus no build. Sometimes the better architecture is Resolve’s native connector for a supported system plus custom logic around it.
|
Approach |
Best Fit |
Main Benefit |
|---|---|---|
|
Native integration |
Supported ecommerce, ERP, or accounting platforms |
Faster deployment with less engineering work |
|
Custom API integration |
Proprietary systems and embedded workflows |
More control over buyer, order, and finance logic |
|
Hybrid approach |
Supported back office plus custom frontend or OMS |
Flexibility without rebuilding everything |
If your team needs custom buyer experiences but standard accounting sync, a hybrid setup can be especially effective. Resolve’s seller workflows, buyer experience, and net terms for ecommerce pages are useful starting points for planning where custom logic belongs.
Resolve custom integrations are the right fit when your team needs to embed net terms, receivables automation, and B2B payments into a stack that does not match Resolve’s native connector model. The value is not just in connecting one endpoint to another. It is in keeping credit, invoicing, collections, and reconciliation inside the same operating workflow.
For B2B merchants that want a more unified order-to-cash process, Resolve offers a stronger foundation than a patchwork of separate credit, payment, and AR tools. Its product suite spans B2B net terms, accounts receivable automation, B2B payments, business credit checks, and flexible integrations. That makes it a practical option for merchants that want to grow sales, get paid faster, and reduce operational friction without pushing buyers into a disconnected finance process.
If you are evaluating a custom build, start with Resolve’s developer docs, map your internal order and invoice lifecycle, and then decide whether a fully custom integration or a hybrid architecture will get you live faster.
Choose a custom integration when your team uses a proprietary OMS, a custom storefront, or an internal ERP workflow that is not already covered by Resolve’s native integrations. If your environment is already supported, a native connector may reduce implementation time.
The most relevant products are Integrations, B2B Net Terms, Accounts Receivable, B2B Payments, and Business Credit Check.
Yes. Resolve’s product materials position the platform as supporting buyer credit workflows, invoicing, collections, payment acceptance, and reconciliation, which is why many teams integrate it across both checkout and finance operations.
Resolve’s context materials state that cash advances are non-recourse and that sellers can keep approved advances, while Resolve handles underwriting and much of the downstream risk and collections workflow.
Developers should confirm current implementation details in the official Resolve developer documentation and with the Resolve team before production deployment.
This post is to be used for informational purposes only and does not constitute formal legal, business, or tax advice. Each person should consult his or her own attorney, business advisor, or tax advisor with respect to matters referenced in this post. Resolve assumes no liability for actions taken in reliance upon the information contained herein.