
Agentic commerce in UK retail: An unresolved liability question
UK merchants expect agentic commerce to grow rapidly, but uncertainty around liability, fraud, and standards is slowing readiness.
16 October 2025
by Payments Intelligence
As payment complexity increases across the UK market, payments leaders face a strategic question: should organisations focus on payment optimisation or payment orchestration? Both approaches aim to improve performance and manage costs, but understanding their respective strengths and limitations is essential for effective decision-making.
Payment optimisation enhances individual transaction performance through data enrichment, intelligent routing, and advanced analytics. Payment orchestration manages multiple acquirers and payment channels through unified platforms. Each approach addresses long-standing challenges within the UK payments infrastructure, yet they demand different levels of investment, technical integration, and organisational commitment.
For payments leaders, strategic differentiation lies in how effectively these approaches improve three key performance dimensions: authorisation rates, cost structures, and overall revenue impact.
The effectiveness of any payment strategy ultimately appears in authorisation rate performance, where measurable differences can be observed between optimisation and orchestration approaches. Recent data from Clear Function highlights varying levels of improvement depending on implementation scope and maturity.
Traditional e-commerce processing typically delivers baseline authorisation rates of around 85%, representing standard industry performance without targeted enhancement. Payment optimisation initiatives can lift this by roughly three percentage points, reaching about 88%, through improved transaction data quality, refined fraud detection, and optimised retry logic.
Payment orchestration tends to deliver larger gains, with authorisation rates reaching approximately 94.5%—a 9.5-point increase over baseline. This uplift reflects the benefits of intelligent routing across multiple acquirers, automated failover, and coordinated retry strategies across providers.
The difference in performance illustrates the broader scope of orchestration compared with optimisation. For UK enterprises processing high transaction volumes, a 6.5-point improvement between the two approaches can translate into material revenue impact.
However, these gains come with differing implementation demands. Optimisation usually requires focused technical refinements within existing infrastructure, whereas orchestration involves wider platform change and multi-acquirer management. Each organisation must weigh whether the performance advantage justifies the added complexity and resource commitment.
Payment processing costs in the UK comprise several components, each influenced differently by optimisation and orchestration strategies. Interchange fees typically account for 70% to 95% of total processing costs, making cost structure analysis a central element of strategic planning.
UK interchange fees follow regulated structures: debit cards incur 0.20% for consumer transactions and 0.30% for business transactions, while credit cards carry 0.30% for consumer and 0.80% for business transactions. These rates are consistent across payment providers and form a non-negotiable baseline cost.
Scheme fees add around 0.05% across card types, covering Visa and Mastercard network charges. Processor markups vary more widely, usually between 0.15% and 0.20%, depending on transaction volume, risk profile, and negotiated terms. Additional costs—including PCI compliance, chargeback management, and monthly account fees—contribute a further 0.10% to 0.15% of total processing costs.
Payment optimisation mainly targets interchange fee reduction through improved transaction data quality. This approach is especially effective for B2B transactions, where detailed invoice information can qualify for preferential interchange rates.
Payment orchestration takes a different approach, focusing on dynamic routing to acquirers offering the most favourable commercial terms for specific transaction types. Although it may not reduce individual transaction costs, orchestration enables merchants to leverage competition among acquirers to achieve portfolio-level cost efficiencies.
UK businesses should assess potential cost savings against implementation requirements. Optimisation often delivers quicker savings through modest technical changes, while orchestration demands greater platform investment but can yield longer-term benefits through strategic routing and enhanced negotiating leverage.
Payment declines represent one of the most significant hidden costs in UK e-commerce, making revenue impact assessment a key factor in strategic decision-making. When legitimate transactions are incorrectly declined, the consequences extend well beyond the immediate lost sale.
The effects of payment failures accumulate over time, creating multiple layers of revenue impact. Research indicates that around 70% of declined transactions involve legitimate customers attempting valid purchases, underlining the scale of false declines in current payment systems. These customers experience frustration and inconvenience, often questioning the reliability of the merchant’s payment process.
The longer-term consequences are even more damaging. Some 44% of shoppers who experience a declined payment stop or reduce their spending with that retailer, demonstrating how failed transactions can erode customer lifetime value and brand loyalty. This attrition represents a lasting revenue loss that far exceeds the original transaction amount.
Equally concerning, 45% of customers do not retry a payment once declined, highlighting the critical importance of first-attempt success. Payment performance therefore correlates directly with conversion rates and immediate revenue capture. The combined effect of false declines, customer attrition, and retry abandonment creates a hidden cost that many UK businesses underestimate.
Payment optimisation helps mitigate these risks through enhanced transaction data, refined fraud detection, and intelligent retry logic within existing infrastructure. Although improvements are often incremental, optimisation can be implemented quickly and deliver immediate reductions in decline rates and false positives.
Payment orchestration addresses the challenge more comprehensively through multi-acquirer routing, automated failover, and coordinated retry strategies. These implementations can produce greater revenue impact, though they require longer timeframes and more extensive resource commitments.
For UK enterprises, revenue impact analysis should consider both immediate performance gains and longer-term strategic value. Optimisation can deliver a faster return on investment through rapid deployment, while orchestration offers greater flexibility and long-term scalability once established.
UK payments leaders must choose between incremental enhancement through optimisation and transformational change through orchestration. Neither approach is universally superior; the right path depends on organisational context, resource capacity, and strategic ambition.
Payment optimisation is well suited to organisations seeking rapid improvements within existing systems, particularly where technical resources are constrained or regulatory considerations limit infrastructure change. Orchestration, by contrast, benefits enterprises ready to undertake a comprehensive transformation of their payment architecture, especially those operating across multiple markets or channels.
With growing emphasis in the UK on payment performance, regulatory compliance, and customer experience, strategic decisions around payment infrastructure will increasingly shape competitive advantage. Organisations should assess their strategic objectives and operational readiness carefully to determine which approach delivers the greatest long-term value.
Both optimisation and orchestration can deliver measurable gains in authorisation rates, cost efficiency, and revenue performance. The key lies in aligning each approach to organisational capabilities and strategic goals to achieve sustainable performance improvements in an evolving UK payments landscape.

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