The most important thing: Make comparison and transaction facts accurate, visible and current.
1List the decision attributes
For products, record model, dimensions, compatibility, materials, current price, currency and stock. For services, record scope, exclusions, prerequisites, lead time and price drivers. Use consistent units and define ambiguous terms such as “unlimited” or “same day.”
The attributes a buyer needs are explicit and maintained.
2Explain the tradeoffs
Write honest comparisons with alternatives, including situations where another option is more suitable. State the date and basis of comparisons. Avoid false competitor claims and unqualified “best” assertions. Show how a buyer should evaluate fit.
A visitor can choose or reject the offer for a clear reason.
3Maintain feeds and destinations
If you sell products, assess relevant merchant feeds and programs against your eligibility. Keep feed price, stock and landing-page information synchronized. Validate errors and expired offers. Do not assume enrollment in one provider’s merchant program distributes products everywhere.
Each used feed agrees with the live offer and its purchase destination.
4Test the transaction
Check shipping availability, taxes and fees, return rules, cancellation conditions and the complete checkout or quote flow. Give forms explicit labels and understandable errors. A human or browser agent should see the same accurate terms before committing.
A representative transaction works without a hidden condition appearing at the last step.
A concrete example
Avoid this mistake: Do not hide total cost, invent scarcity or mark out-of-stock products as available. Technical discoverability cannot compensate for incorrect offer data.