Mobile-first checkout: where conversions are won (or lost)

Mobile-first checkout: where conversions are won (or lost)

Globally, 96% of internet users go online via mobile, and 54% of ecommerce purchases already happen on smartphones [1]. The moment of truth is no longer just the cart, but the checkout on a small screen, often on the go, with unstable connections and very little tolerance for complexity.

27.8% of users say the simplicity of the checkout is the decisive factor in completing an order [2]. Globally, various studies show that mobile cart abandonment rates are significantly higher than on desktop, in some cases exceeding 75% [3]: every extra field, every slow-loading page, every unclear message can turn an “almost customer” into a lost sale.

Where friction hides in mobile checkout

When designing checkout flows, many companies focus on the most visible elements (brand, colors, buttons), but neglect less obvious aspects that have a huge impact on conversion, especially on smartphones:

• Forms that are too long: requests for data that are not essential to the transaction (phone number, date of birth, redundant information) that weigh down the process.
• Mandatory registration: forcing users to create an account before paying is one of the main causes of abandonment.
• Lack of clarity on costs and timing: shipping costs or fees shown only at the last step create mistrust and frustration.
• Cryptic error messages: generic indications (“payment error”) with no explanation or suggestions on how to fix the issue.
• Payment methods not aligned with customer habits: lack of solutions that allow customers to use their bank account directly and securely.
• Poor mobile usability: small fields, buttons that are too close together, non-optimized keyboard (e.g. alphanumeric keyboard for numeric data), no autocomplete.

These details, often considered “minor”, are actually the points where conversion is won or lost. A friction-proof checkout is not just nice to look at: it is designed to minimize the customer’s decisions, effort and doubts.

Why A2A payments are a natural ally of mobile-first

Integrating account-to-account (A2A) payment solutions such as MyBank allows you to rethink checkout by truly putting the customer at the center. With MyBank, the user:

• pays instantly, directly from their online banking, in an environment they know and already trust with the management of their money;
• does not have to manually enter IBANs, amounts or complex references: the MyBank payment form is pre-filled with all the necessary data;
• follows a few clear, linear steps, perfectly adapted to the mobile experience;
• receives immediate confirmation of the transaction, which increases their sense of control and trust.

For the company, this translates into a twofold advantage:

1. Smoother customer experience
   Fewer fields, fewer chances for errors, fewer abandonments. Paying from one’s own online banking reduces psychological friction because it does not require “trusting” a completely new system: the customer uses a tool they already use every day.
2. Administrative efficiency thanks to 100% automated reconciliation
   Every MyBank payment arrives with all the correct references, enabling full automatic reconciliation. The finance team no longer has to manually match bank transfers, unclear payment descriptions and orders: less time spent, fewer errors, more control over cash flow.

A practical checklist for a friction-proof mobile checkout

In addition to integrating A2A solutions like MyBank, there are a few best practices every company should apply to improve its mobile checkout:

1. Reduce fields to the bare minimum
   Ask only for what is truly necessary to complete the order and meet regulatory requirements. Everything else can come later, if needed.
2. Always offer guest checkout
   Allow customers to pay without creating an account. You can offer registration only after the purchase, when they are more willing to do so.
3. Optimize forms and keyboard for mobile
   • Use the right keyboard type (numeric for numbers, email keyboard for email, etc.).
   • Enable autocomplete wherever possible.
   • Keep fields and buttons well-spaced and easy to tap.
4. Show total costs and delivery times upfront
   Maximum transparency on shipping costs, any fees and estimated delivery times. No “surprises” at the last step.
5. Simplify the language
   Checkout copy should be clear, concise and easy to understand even on small screens. No technical jargon, especially in error messages.
6. Integrate payment methods in line with digital habits
   In addition to traditional solutions, offer A2A options like MyBank for those who prefer to pay directly from their bank account, without intermediaries.
7. Reduce unnecessary redirects
   Every domain or interface change can create mistrust. The experience should be as continuous and consistent as possible from cart to payment.
8. Continuously monitor and test
   Analyse abandonment rates at each step, test different checkout variants (number of pages, field layout, button copy) and collect customer feedback.

The role of MyBank in a mobile-first strategy

For companies that sell and collect payments online – or that use Pay-by-Link solutions in the physical world as well – designing a mobile-first checkout means starting from the customer’s bank account, not from a single payment instrument.

Adding A2A payments such as those offered by MyBank alongside existing methods makes it possible to:

• reduce perceived friction at the moment of payment;
• increase trust thanks to the direct use of online banking;
• streamline internal processes, thanks to immediate settlement and 100% automated reconciliation.

In a context where mobile access and the use of digital payment tools are constantly growing, checkout is no longer a technical detail: it is one of the main competitive factors for anyone doing business online.

[1] Report Digital 2026 Global Overview Report – We Are Social

[2] Report Digital 2026 Global Overview Report – We Are Social

[3] Shopping Cart Abandonment Statistics in 2025 – Kanuka Digital