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Why would a UK merchant or trade wholesaler hire an ERP consultant?
A wholesale ERP consultant helps UK merchants and trade wholesalers bring trade account opening, discount matrices, job quotes, counter and web pricing and customer rebates into one ERP. I map how your accounts are priced and credited today, check the VAT touchpoints with your accountant, then test platforms against real trade deals and guide the rollout.
Last reviewed by Vikas Saroj
I work remotely with UK builders' merchants, plumbing and electrical wholesalers, catering suppliers and other businesses that sell mainly to trade account holders. Their commercial model rests on a published list price, a discount structure that differs for almost every account, and special prices agreed for particular jobs or contracts.
In many of these businesses the discount structure lives in an ageing system that only two people fully understand, and the counter, the phone desk and the web shop each apply it slightly differently. Customers notice, and so does the margin.
I start with the commercial rules and the account lifecycle, then help you find an ERP that holds them cleanly.
UK merchants usually bring me in when the discount structure has grown beyond what the current system can explain, or when a web shop for trade customers is on the plan.
From credit application and references to the first order, I map who approves a new trade account, how limits are set and how the right discount profile is attached before the customer buys.
I turn customer-by-product-group discounts, net prices and exceptions into a matrix the ERP can hold, with a review cycle so old exceptions expire rather than living on for years.
Special prices for a named project or contractor are captured as quotes with validity, quantities and the site they apply to, so the counter and the phone desk honor them without guesswork.
Retrospective rebates promised to larger accounts are written up with qualifying spend, product scope and payment method, so accruals sit in the ledger and settlement is not a year-end scramble.
I scope the trade web shop or app so it shows each account's own net price, delivery and collection options, and order history from the ERP rather than from a separate price file.
Vendor demos are scripted around your real accounts and quotes. I then support the implementer through configuration, user acceptance testing, branch training and the first statement run.
An ERP for wholesale should make these numbers available without a spreadsheet. I design the data model and reports around them from the start.
Accounts, discounts and branches
Rules the ERP can hold
Configure, test and settle
In a UK merchant or trade wholesaler, the trade account is the customer relationship. The applicant completes a credit application, the business checks references or a credit report, someone decides the limit and payment terms, and the account is set up with a discount profile. Some businesses also ask for a personal guarantee from directors of smaller limited companies, and some insure their receivables, in which case the insurer's view on each account matters.
When I map this process I usually find the steps are sound but the records are scattered: the application in email, the credit check in a separate portal, the limit typed into the accounting system and the discount profile copied from a similar customer. Nobody can say why a particular account received its terms.
The requirement I write keeps those decisions together on the customer record, with an approval trail and review dates. Credit limits are checked when an order is placed at the counter or online, not only when the invoice is raised. A clean account opening flow is also the foundation for a trade web shop, because online customers can only see their own prices if the account was set up correctly in the first place. This work sits within ERP process mapping.
The usual UK merchant pricing model starts with a list price per item, groups products into discount groups, and gives each account a percentage off each group. On top of that sit net prices for specific items, special prices agreed for a job, and promotional prices from suppliers. It works, but only when the order of precedence is clear and the exceptions are controlled.
In workshops I lay the matrix out as a grid: account or account class down the side, discount groups across the top, with a note on which items carry net prices. Then I ask sales and finance to agree the rules:
That table becomes part of the BRD. In demos I ask each vendor to price the same five tricky orders, including a contractor with a job quote buying an item outside it. The results tell you more than a feature list.
Trade customers normally see prices excluding VAT, while cash customers at a counter may expect prices including it. Product lines can carry different VAT treatments, and some trades have their own rules for particular goods or for supplies to certain customers. I do not decide the treatment; I record how each product group and customer type is handled today and pass that list to your accountant for confirmation before configuration.
The design job is consistency. The counter terminal, the phone desk and the trade web shop should calculate the same net price and the same VAT for the same account, because a customer who is quoted differently in two channels will call to complain and usually ask for the lower price. VAT records also need to flow into returns through software that supports Making Tax Digital, so I check how the ERP or the accounting system behind it produces the return.
Credit notes deserve attention too. Price corrections, returns, short deliveries and rebate settlements all produce credits, and each needs a reason code and a link to the original invoice. When that is designed in, statements become readable and disputes shrink. I include each credit type in UAT scripts.
Larger trade accounts often negotiate a retrospective rebate: a percentage back on qualifying spend over a year or quarter, sometimes with growth tiers. If the rebate is tracked in a spreadsheet, the cost lands in one month as a surprise and the account manager cannot tell the customer where they stand. I define each agreement with its qualifying products, spend bands, period and settlement method, so the ERP accrues as invoices post and produces a statement the customer can check.
Monthly statements and credit control close the loop. Many UK trade accounts pay on monthly terms, so the statement run, reminder sequence and stop list need to work without manual editing.
Typical starting points are Sage with a bolt-on order system, an older merchant package that is no longer developed, or a mix of tools added over the years. Migration focuses on active accounts with their limits and discount profiles, live job quotes, open rebate agreements with spend to date, and item data with discount groups and units. I work remotely in UK hours, which makes daily stand-ups easy. See also Zoho Inventory for UK businesses, the UK ERP consultant page, the UK hub and the general wholesale ERP guide.
Tell me about your business and current systems. I’ll suggest the most sensible first step.
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Not sure which ERP you need?
Share your business requirements with me and I will help you understand the right process, architecture and platform before implementation.
Usually, yes. Most mid-market platforms support discount groups and customer-specific prices. The work is in cleaning up exceptions and agreeing precedence so the new system gives the same answer the old one did for the right reasons. I test that by repricing a sample of recent invoices in the new platform before go-live.
No. Deciding VAT treatment sits with your accountant. I document how each product group and customer type is currently coded, flag anything that looks inconsistent, and make sure the confirmed treatment sits on the item and customer records so every channel applies it the same way.
Yes. I run workshops by video with branch managers and counter staff, use screen sharing to walk through real transactions, and ask for short recordings of busy periods where helpful. A visit in person is possible by arrangement, though merchants tend to prefer short remote sessions that fit around trading hours.
No. I am independent and do not resell software. I compare platforms against your own trade accounts, quotes and rebates, and I am equally comfortable recommending that you keep and improve your current system if that is the better option for the business.
Every business is different. Share where you are today and what you want to fix, and I’ll tell you honestly whether and how I can help.
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Book a consultation to talk through your processes, systems and goals. I’ll reply with practical next steps - no obligation.