What a B2B customer portal actually replaces
Before a portal exists, a typical UK wholesale supplier's day looks like:
- Customer emails asking “do you have SKU 4912 in stock? what's my price for 200 of them?”
- Account manager checks the inventory system, looks up customer pricing tier, replies.
- Customer emails back to confirm. Manager keys the order into the system manually.
- Customer emails a week later asking for an invoice copy and a delivery ETA.
That's 10-15 minutes per order, minimum. Multiply by hundreds of customers and thousands of orders a year and it's a full-time role just to handle B2B ordering admin.
A portal replaces all of it with a login. Customer sees their own catalogue, their own pricing, their own credit terms, places the order themselves, and downloads their own invoice. Your team touches only the exception cases.
The six features that separate good portals from cheap ones
- Per-customer catalogues. Customer A sees 400 SKUs; customer B sees a different 150. Exclusive products, account-only lines, and ranges-by-region all fall into this.
- Tiered pricing with automatic unit break.“Under 50: £3.20; 50-199: £2.90; 200+: £2.65.” Portal calculates the right price as the customer changes quantity, no manual intervention.
- Credit terms respect. Customer on 30-day terms checks out and the invoice due-date is correct. Customer on upfront payment gets a payment screen. No one-size-fits-all.
- Order-from-history.“Same as last month, plus 10% more on SKU X.” One click. Most B2B ordering is re-ordering.
- Live stock and delivery ETA.Not static “in stock / out of stock” — actual quantity available with back-order ETAs where relevant.
- Downloadable invoices and delivery notes.Customer's finance team can self-serve documents for their own accounting — not an email trail.
Built-in vs bolt-on portals
The single biggest architectural choice is whether the portal is built into your inventory platform or is a separate product that syncs via API. It's a bigger deal than it sounds.
| Aspect | Built-in | Bolt-on (via API) |
|---|---|---|
| Stock accuracy at checkout | Live | Sync-delayed (minutes-hours) |
| Pricing accuracy | Live | Often stale at edge cases |
| Order-to-invoice latency | Immediate | Sync delay |
| Extra licence cost | Usually included | £50-200/mo per extra tool |
| Reconciliation bugs | Rare | Routine |
| Feature velocity | Moves with core product | Can move faster in some cases |
UK platforms with a built-in portal
- MaxInvent — included in the Starter tier (£149/mo). Tiered pricing, credit terms, per-customer catalogues, order history, Xero invoice push. Custom subdomain under
portal.yourbrand.co.uk. - Brightpearl — bundled on enterprise plans. Typically £2,000+/month for the full platform. Rich, mature, but overkill for most SMBs.
- Unleashed — B2B portal included. Strong on wholesale, narrower on multi-channel ecommerce depth.
- Cin7 Omni — B2B portal available, higher tiers only. Strong on US market, less UK-focused than MaxInvent or Brightpearl.
When a bolt-on portal still makes sense
If your inventory platform doesn't have a built-in portal and migrating is genuinely too painful, bolt-ons like B2B Wave, Handshake, or TrueCommerce are credible. They do the job. Expect £150-300/month on top of your existing platform, plus the ongoing low-level pain of keeping two systems reconciled.
The honest comparison: a platform migration to something with a built-in portal typically costs 6-12 months of bolt-on licensing fees in labour, and saves the same amount in ongoing reconciliation work. Most sellers who migrate say they should have done it sooner.
Quick decision framework
- Fewer than 10 recurring B2B customers? Email and a spreadsheet is fine. Revisit when you grow.
- 10-50 customers, 1-5 orders/customer/month? Built-in portal on a mid-market platform (MaxInvent, Unleashed). The time saved is real and measurable.
- 50+ customers, complex approval workflows, multi-site purchasing?You need enterprise-grade portal features — Brightpearl, MaxInvent's Growth tier, or custom build.
- Already on Linnworks or Veeqo, B2B side is growing? Add a bolt-on portal now, plan migration to a built-in in 12-18 months.