One-click upsells
We implement one-click upsells: after a purchase the customer can add an add-on with a single button, without re-entering payment details. To remove the friction of an additional purchase for those who already entrusted you with payment. Honestly upfront: 'one click' works only if your platform/provider securely supports payment by saved details; we do not guarantee check growth, and the add-on must be relevant, without pressure.
One-click upsells — overview

One-click upsells is an implementation project: we implement the one-click upsell mechanic after checkout — adding an additional product/service with a single button using the already-authorized payment (without re-entering the card), with explicit confirmation of the extra charge and additional-order integration. Honestly about the technical condition, this is key: 'one click' is possible ONLY if the payment provider/platform supports a secure additional charge by the saved method (tokenization) within the rules; if there is no such support, an honest 'one click' cannot be done — we will offer a quick but correct additional order rather than promise the impossible or store payment data insecurely. Honestly about consent: even 'one click' is an extra charge — explicit buyer confirmation is needed, without hidden charges. Honestly about the result: a one-click upsell can raise the check/LTV, but we do NOT guarantee growth and do not promise '+X%' — it depends on relevance and the offer; the effect should be checked with a test. Honestly about tone: no pressure and no irrelevant add-ons — otherwise annoyance and returns. Honestly about the essence: this is a technical quick-upsell mechanic, NOT a guarantee and NOT a post-purchase upsell in general (653 — broader, not necessarily one click). An important boundary: these are one-click upsells, not order bumps (652 — at checkout), not cross-sells (654) and not payment integration from scratch. If the provider does not support a secure extra charge, the mechanic is unavailable — we say so honestly. Picture this: instead of 'place a new order from scratch' the customer adds an add-on with a single button — where it is securely possible. The base price starts from 12,000 ₽ per project; it depends on the payment platform.
Problems we solve
- An additional purchase requires re-entering payment details — the customer leaves.
- You miss a quick add-on right after purchase.
- There is no single-button adding mechanic.
- You fear insecure handling of payment data — justified.
What's included in the One-click upsells service
- Implementing the one-click upsell after checkout
- Extra charge by the saved method (if the provider supports it securely)
- Explicit confirmation of the extra charge (no hidden charges)
- Additional-order integration into your system
- A relevant, unobtrusive offer
- An honest alternative (a quick additional order) if 'one click' is impossible
- A recommendation to check the effect with a test
- Reviewing with you
What you get
- An add-on is added with one button, without re-entering payment
- Less friction of an additional purchase for those who already bought
- Securely and with explicit confirmation
- A hypothesis to validate: does it help you (a test)
How the work goes: steps
- We check the provider's/platform's support for a secure extra charge
- We implement one-click (or an honest quick alternative) and integration
- We check correctness and security, recommend a test, review with you
Why PDV Expert
- Fixed price and timeline — no surprises on the invoice.
- Report and recommendations in plain language — clear without a technical background.
- In touch at every step and answering questions about the result.
FAQ
Will 'one click' definitely work for me?
Only if the payment provider/platform securely supports an extra charge by the saved method (tokenization). If not, an honest 'one click' is impossible; we will make a quick correct additional order. We will not store payment data insecurely for the sake of a 'click'.
Does it guarantee check growth?
No. A one-click upsell can raise the check/LTV, but growth depends on relevance and the offer. The effect should be checked with a test; we do not promise '+X%'. And even one click is an extra charge with explicit confirmation, without hidden charges.
How is it different from an order bump and a post-purchase upsell?
An order bump (652) is an add-on by checkbox at checkout before payment; a post-purchase upsell (653) is an offer after purchase (not necessarily one click); a one-click upsell is specifically the technique of a quick single-button extra charge. These are different mechanics.
About the provider
The «One-click upsells» service is provided by PDV Expert — a team specialising in «Conversion & analytics». We work under contract and deliver a written report with recommendations.