This feature would automatically apply an offer code when a client's cart total exceeds a specified amount. Key benefits include:

• Streamlined checkout process for clients
• Increased sales through incentivized higher spending
• Reduced manual intervention from staff
• Flexibility to set different thresholds for various promotions

The system would continuously monitor the cart total during the booking process and instantly apply the relevant offer once the threshold is met, enhancing the overall customer experience and potentially boosting revenue.