TWO RULES / ONE CHECKOUT AMOUNT
Agree the overlap before launching the offer.
A public-listing buying brief for promotion coexistence, precedence and price calculation.
REVIEW 01
Introduction
A buyer asks for a lower price on a featured drink and a second discount when several products are bought together. Each proposal sounds clear on its own. The unresolved question appears when the same basket seems to qualify for both: does the system choose one offer, combine the benefits, or reject the combination? Different answers change the amount the customer pays and the margin the operator retains.
The WM22 public listing describes multiple purchases with a discount and a promotion mode for specific products. The AI fridge page separately describes date-related automatic discounts. These statements come from different product descriptions. They do not establish a shared promotion engine or prove that any two rules can run together. A purchasing specification must first identify which functions are actually offered on the chosen configuration.
This guide addresses overlapping price rules after their individual eligibility has been defined. It is distinct from choosing which products count toward a multi-buy threshold. The goal is an agreed price outcome for a conflicting basket, supported by a supplier demonstration. The examples are proposed purchasing requirements, not verified WEIMI software behaviour.
REVIEW 02
Quick Answer
Ask for a written overlap policy and one expected final amount for every demonstrated basket. Name both rules, define which takes precedence and state whether benefits can combine. Specify the price base for each calculation and what the customer will see before payment.
Do not assume “best price wins,” “all discounts stack” or “last rule wins.” Those are possible policy descriptions to discuss, not functions established by the public listings. Ask the supplier to confirm what is supported and identify any software option or limitation in the quotation.
If the exact combination is unavailable, agree a simpler supported offer before buying the configuration. An unresolved conflict is a specification gap. It should not be left for the commissioning team to explain after the promotional message is already on the screen.
REVIEW 03
Comparison Table
| Buying question | Single-rule evidence | Additional overlap evidence |
|---|---|---|
| Is a product promotion available? | The selected product receives its agreed price. | What happens when a second offer also applies? |
| Is a multi-buy rule available? | A named basket crosses its agreed threshold. | Does qualification use ordinary or reduced item prices? |
| Is a date-related reduction available? | The relevant stock and date rule are identified. | Can it coexist with the proposed basket offer on this model? |
| What amount is charged? | One rule produces its expected total. | The combined case has one agreed result and explanation. |
Passing the two individual examples does not demonstrate their intersection. Retain separate evidence for Rule A, Rule B and the case where both appear relevant. If a combination is not supplied, record that limitation explicitly.
REVIEW 04
Who Should Buy This
Use this review when a vending project requires more than one pricing rule, when an operator is comparing software proposals, or when an equipment distributor promises a promotional workflow to its customer. A buyer planning only an ordinary fixed-price menu may not need an overlap feature at all.
The commercial owner should describe the intended offer in plain English. The supplier should identify supported settings. The operator should review the customer display and transaction record. Keeping these responsibilities visible prevents a technical setting from silently becoming a commercial decision about how much discount to grant.
For a fleet, decide whether all locations need the same policy. If the supplier offers configuration by site or machine, ask how the accepted version is identified. Do not infer fleet-wide deployment controls from a general remote-management claim.
REVIEW 05
How We Evaluate Smart Vending Machines
We review three real public WEIMI product listings and use their stated functions to form a procurement shortlist. This is not independent equipment testing, a measured reliability comparison or a claim that all three support the proposed rules. The public wording identifies useful questions; a configuration-specific demonstration must answer them.
First, identify the functions offered on the exact model. Second, agree each rule in isolation. Third, construct a basket in which the rules overlap and write the expected outcome before running it. Finally, retain the customer-visible price and the resulting transaction record for the same example. This is a proposed evidence process, not a report of completed tests.
Keep pricing, product recognition, dispensing and payment support separate. Correctly identifying three items does not prove the intended discount was selected. A payment authorization does not explain the calculation. A successful price demonstration does not establish that a product can be stored or dispensed in the chosen cabinet.
REVIEW 06
Key Buying Factors
1. State the coexistence boundary
Name the exact pair of rules and ask whether both can be active on the supplied configuration. A public page for one product cannot establish another model’s software functions. If only one rule can operate, the specification should say which one the buyer will use and what message will be shown.
2. Define precedence and benefit scope
If the combination is supported, specify whether one rule excludes the other or whether the benefits combine. State which items receive each benefit. Do not use “best discount” without defining the comparison: an item reduction and a basket reduction can affect different portions of the purchase.
3. Identify the calculation base
For a percentage benefit, ask whether it uses the ordinary price or a price already changed by another rule. For a spend threshold, ask which price is counted toward qualification. These are feasibility questions for the supplier, not claims about settings currently available in the machine.
4. Fix the currency and rounding treatment
Agree the currency, displayed precision and supplier-supported rounding method. Keep the unrounded arithmetic in the review worksheet where helpful. This article does not prescribe a tax treatment or legal pricing method. Obtain market-specific advice where needed and use the final agreed payable amount in the demonstration.
5. Review the customer explanation
The buyer should be able to connect the displayed items, any applied benefit and the final amount. Ask what the actual interface can show, including an offer that did not combine. Avoid promising receipt fields, crossed-out prices or explanatory messages that the supplier has not demonstrated.
6. Retain the rule version with the result
Save the rule names, eligible products, prices, configuration reference and expected total together. If a rule changes, repeat the relevant overlap example. A screenshot of a successful basket without the corresponding rule definition will be difficult to interpret during a later disagreement.
REVIEW 07
Best Smart Vending Machines
WM22 Touchscreen Snack and Drink Vending Machine
Read the WM22 public listing. The page describes a 21.5-inch touchscreen, multiple purchases in one transaction, multiple purchases with a discount and a promotion mode for specific products. These statements make WM22 a useful starting point for discussing an item promotion and a multi-buy requirement.
The listing does not define their interaction. Request a demonstration of the exact pair, including the base prices and expected final amount. Confirm the selected dispensing configuration, local payment support and any software charges separately. We do not rely on the page’s differing generic energy or capacity figures to rank this candidate.
Single-Door AI Vision Smart Fridge for Packaged Drinks
Read the AI fridge public listing. This cabinet sells compatible packaged drinks and snacks through camera-based automated checkout. It describes multiple-item purchases and separately states warning-date automatic discounts and expired-product sale stopping. It has five shelf levels and five baskets; actual product capacity and recognition require validation.
A multiple-item workflow is not proof of a quantity-based discount. The date-related statement also does not prove that a basket offer can stack with it. If the project needs that combination, ask whether it is offered on this model and which stock the date rule addresses. Validate actual packaging and shelf placement independently of the price-rule review.
Two Cabinets, More Choice | Snack & Drink Vending Station
Read the dual-cabinet public listing. The station combines a main product display and a secondary visible spiral-lane compartment beneath a portrait menu and payment area. The page asks buyers to confirm product mapping, payment integration, reports and exception handling for both selling sections.
The public description does not establish a shared multi-item transaction or a promotion engine. First resolve what can be bought in one transaction. Only then ask whether the required overlapping rules apply within that scope. Do not infer cross-cabinet discounting from the appearance of a coordinated station.
REVIEW 08
Feature Comparison
| Candidate | Publicly described pricing context | Required buying proof |
|---|---|---|
| WM22 | Multi-purchase discount and specific-product promotion mode. | Exact coexistence policy and overlap basket on the quoted software. |
| AI vision fridge | Multi-item checkout and separate date-related discount statement. | Whether the proposed second offer exists and how the stock rule interacts with it. |
| Dual-cabinet station | Menu/payment configuration requires confirmation. | Transaction scope first; promotion support and overlap only if offered. |
This comparison ranks the strength of the starting evidence for this particular discussion, not the machines’ commercial performance. A candidate should remain conditional until it demonstrates the buyer’s required workflow in the actual proposed configuration.
REVIEW 09
Cost & ROI Analysis
All values below are fictional assumptions used to expose a pricing ambiguity. Assume three eligible items ordinarily cost US$4 each, giving an ordinary basket of US$12. Rule A reduces one specified item by US$1. Rule B gives 10% off the basket. Assume both rules are individually eligible, with no tax, payment-fee or other adjustment in this simplified exercise.
| Hypothetical policy | Calculation under stated assumptions | Illustrative payable amount |
|---|---|---|
| Only Rule A applies | US$12 − US$1 | US$11.00 |
| Only Rule B applies | US$12 × 90% | US$10.80 |
| Rule A, then 10% on the reduced basket | (US$12 − US$1) × 90% | US$9.90 |
| 10% on ordinary basket, then US$1 off | (US$12 × 90%) − US$1 | US$9.80 |
These outcomes show why the word “both” is insufficient. They are alternative policy examples, not verified supported options or a recommendation to choose the largest reduction. In an actual order, the supplier must confirm the calculation and rounding behaviour the buyer intends to use.
Assume the three products together have US$6 in variable product cost. Contribution before all other costs would be US$4.80 at a US$10.80 selling total, and US$3.80 at US$9.80. That US$1 difference follows from the assumed price policy. It is not a measured loss, a sales forecast or an equipment payback result.
For a real investment review, use actual product costs, service charges, payment fees and site costs. Include any quoted promotion-software option and the work needed to maintain rules. Do not claim that adding a second offer creates enough extra demand to recover its discount. That requires operating evidence beyond a feature list.
REVIEW 10
Best Choice by Scenario
One item promotion plus a multi-buy offer
Begin with WM22’s relevant public statements and ask for both individual examples plus their intersection. If the software supports only one active offer, evaluate whether that simpler arrangement meets the commercial brief before committing to equipment.
Date-related price reduction plus another offer
Use the AI fridge as a conditional discussion candidate. Establish the date input and affected stock, then confirm whether the desired second rule is available. Do not merge separate product-page claims into a fictional common feature set.
Products from two selling sections
Resolve the dual-station transaction boundary before discussing a station-wide promotion. A confirmed purchase involving only one section cannot establish that a cross-section basket or combined benefit exists. Ask for the exact intended example.
REVIEW 11
Applications
At quotation stage, attach the plain-language policy and illustrative baskets to the software brief. Ask the supplier to mark each requirement as offered, an alternative or unavailable. This makes a limited but clear proposal more useful than a generic promise of flexible promotions.
Before commissioning, use products and prices linked to the accepted configuration. Demonstrate no offer, Rule A only, Rule B only and the overlapping case. Those cases isolate the issue without pretending to be a statistical test of every possible basket. Broaden the demonstration where the actual agreed rules create additional boundaries.
During operation, review overlap when the eligible list, prices or rule definitions change. Preserve the previous accepted record and identify the replacement. This is change-control guidance; no remote rollback, automatic conflict detection or audit-export feature is claimed for the listed machines.
REVIEW 12
FAQ
Does WM22’s listing prove that its discounts stack?
No. It describes multiple-purchase discounts and product promotion mode, but the public wording does not define how overlapping rules interact. Confirm the exact configuration with the supplier.
Can I apply the AI fridge’s date-discount claim to WM22?
No. The statements come from different product listings. Ask what is supplied on the chosen model instead of transferring claims between models.
Is choosing the cheapest final total always the intended policy?
No. The commercial owner must define the intended benefit, and the supplier must confirm support. A lower total is not automatically the correct implementation of the agreed offer.
Why test each offer alone before the combined case?
Separate cases show what each rule is meant to do. The overlap case then isolates their interaction. These are proposed demonstration cases, not tests we have performed.
Does the example define tax or rounding compliance?
No. It uses simple fictional amounts solely to show alternative calculations. Agree the supported currency and rounding method and obtain relevant market advice where required.
Can the dual-cabinet station combine both sections in one discounted basket?
The public listing does not establish that function. Confirm the transaction scope and promotion support before specifying a cross-section offer.
REVIEW 13
Final Recommendation
Buy the demonstrated pricing outcome, with its limits written down. A useful specification names the rules, establishes whether they can coexist and states one expected total for each accepted example. It also identifies the prices and configuration that produced that result.
WM22 provides the clearest public starting point for discussing an item promotion alongside a multi-buy offer. The AI fridge offers a different checkout and date-rule context. The dual station needs its transaction boundary resolved first. These are public-listing procurement candidates, not independently tested winners. Choose the one that confirms the complete required workflow and fits the rest of the project.
REVIEW 14
CTA
Request a quote with one unambiguous price policy
Send WEIMI your country, location, quantity, products, storage needs and payment preferences. Include the two proposed offers, the intended overlap policy and a few baskets with expected final totals.
Ask which functions are available on the quoted model, which software options are required and how the exact customer result will be demonstrated. Confirm product fit, payment support, service terms and all charges separately.
Get My Custom QuoteSource basis: the three public WEIMI product listings linked above, reviewed 15 October 2026. The policies, demonstrations and financial values are proposed or hypothetical; no independent testing, legal pricing conclusion, search-volume claim or commercial return is established.
