Compare custom wholesale portals and Shopify B2B for payment terms, costs, flexibility, and integration. Find the best fit for regional distributors and small‑business founders.
A custom wholesale portal lets you design payment workflows—Net 30, Net 60, or even dynamic credit scoring—directly into your ERP or CRM. Shopify B2B (Shopify Plus with B2B features) offers built‑in payment terms through Shopify Payments or external gateways, but its flexibility is bounded by Shopify’s API limits and pricing tiers. If you need granular control over credit limits, automated invoicing, or integration with legacy systems like NetSuite, a custom solution wins. For quick deployment, lower upfront costs, and a unified e‑commerce stack, Shopify B2B is often sufficient.
Shopify B2B (Shopify Plus with the B2B app) supports payment terms through Shopify Payments’ “Payment Terms” feature and third‑party apps such as NetSuite Integration or Salesforce Commerce Cloud. It allows setting a default payment window (e.g., Net 30) and auto‑generating invoices. However, the platform restricts custom logic for conditional terms, credit checks, or tiered pricing that changes with order volume. The API rate limits (2,000 calls per hour) can slow batch updates for large catalogs, and the cost climbs to $2,000 / month for the Plus plan plus app fees.
A custom portal built with React, Next.js, and AWS Lambda lets you embed real‑time credit scoring using machine‑learning models, integrate directly with ERP systems like NetSuite or SAP, and automate invoice generation via PDF libraries (e.g., jsPDF). You can expose REST or GraphQL endpoints for partners to pull their own payment history, set dynamic discount schedules, and trigger automated reminders. Because the codebase is owned, you can add new payment gateways (Stripe, Braintree, PayPal) without vendor lock‑in, and scale compute via Terraform‑managed infrastructure.
| Item | Custom Portal | Shopify B2B |
|---|---|---|
| Initial Development | $15k–$25k (fixed‑scope) | $2k / month (Shopify Plus) |
| Ongoing Maintenance | 10–15% of dev cost per year | $200–$500 / month (support + apps) |
| Payment Gateway Fees | 2.9% + 30¢ per transaction (Stripe) | 2.9% + 30¢ per transaction (Shopify Payments) |
| Integration Costs | Custom API connectors (NetSuite, Salesforce) | App marketplace fees ($100–$200 / month) |
| Total 3‑Year Cost | $45k–$60k | $30k–$40k |
If your order volume is high and you need bespoke credit logic, the upfront cost of a custom portal pays off after about 18–24 months. For lower‑volume distributors or those who prioritize speed, Shopify B2B offers a lower break‑even point.
| Factor | Custom Portal | Shopify B2B |
|---|---|---|
| Multi‑location inventory sync | Direct API to ERP (NetSuite) | Shopify Plus inventory sync (API limits) |
| Custom pricing per location | Yes, via dynamic rules | Limited, requires app |
| Offline order capture | Full support via mobile app | Limited |
| Customer portal security | Role‑based access control | Shopify’s built‑in auth |
| Time to market | 3–4 months | 1–2 weeks |
For distributors with complex location‑specific pricing and inventory, a custom portal built with Wolverine Solution’s React + AWS stack gives the control needed. If the distributor’s catalog is small and they already use Shopify for retail, adding the B2B app can be a quick win.
Payment terms directly influence days sales outstanding (DSO). A custom portal can implement dynamic terms that shorten DSO when customers pay early, using automated discount prompts. Shopify B2B offers a flat Net 30 window but can integrate with credit‑score APIs to adjust terms per customer. For founders who need to negotiate terms on a case‑by‑case basis, a custom solution’s flexibility reduces the risk of overdue accounts and improves cash flow forecasting.
Wolverine Solution specializes in fixed‑scope builds for web applications, mobile apps, and AI‑driven workflows. We use React and Next.js for front‑ends, AWS Lambda and Terraform for infrastructure, and Stripe or Braintree for payment processing. Our embedded product leadership guides founders through product‑market fit, while our DevOps ensures secure, compliant deployments. Whether you choose Shopify B2B or a custom portal, we deliver a scalable, maintainable solution that aligns with your budget and timeline.
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A fixed‑scope portal typically takes 3–4 months from requirement gathering to launch, depending on API complexity and third‑party integrations.
Yes, via the NetSuite Connector app or custom middleware. However, real‑time inventory sync may hit API limits if you have thousands of SKUs.
No. Wolverine Solution offers 12‑month post‑launch support at 10% of the initial development cost, covering bug fixes, updates, and scaling.
You can integrate external credit‑score services through Shopify Apps, but implementing conditional payment terms requires custom app development, which adds cost and complexity.
Implement OAuth 2.0 for authentication, encrypt data at rest with AWS KMS, and adhere to PCI DSS for payment processing. Wolverine Solution follows these best practices out of the box.
Whether you need a fully customized portal or a quick Shopify B2B deployment, Wolverine Solution can design, build, and ship the solution that fits your budget, timeline, and growth plans. Contact us today for a free consultation and let us show you how to streamline payment terms while keeping cash flow healthy.
Need this built? Our team does fixed-scope fixed-price portal build — scoped, priced and delivered in weeks.
Mehedi Hasan · Senior Software Engineer