Cart Drawer Optimization: Removing Friction to Increase Checkout Progression
For CellLift, an interruptive sample-selection modal was replaced with an integrated, customer-controlled cart-drawer experience.
CellLift's checkout experience featured an interruptive sample-selection modal at a critical decision point. While it was designed to boost engagement, it instead created cognitive overload and delayed customers' progression to checkout — friction was outweighing whatever benefit the modal was meant to add.
The modal approach was generating friction rather than engagement at the decision stage — a signal that the sample-selection step needed to become optional and customer-controlled, not a gate blocking the path forward.
Repositioning sample selection from an interruptive modal into an optional, integrated cart-drawer step — while making the checkout CTA impossible to miss.
What We Built
01. Removed the Interruptive Modal
Sample selection no longer blocks the path to checkout.
02. Integrated Into the Cart Drawer
Samples became an optional step inside the existing cart flow instead of a separate gate.
03. Enhanced Checkout CTA
Increased visual hierarchy and prominence of the checkout button.
04. Persistent, Focused Drawer
Kept the cart drawer open to maintain momentum, and removed chat from the drawer to cut distraction.
"Reducing interruption, improving CTA visibility, and maintaining flow meaningfully increased checkout progression and overall conversion."