Product design

Instacart: decide on replacements before an item runs out

Instacart lets people order store items online for a shopper to pick up. Its replacement preferences let customers say in advance what they would accept when an item is unavailable, and when they would prefer a refund.

Form your own approach first, then explore the reasoning to check trade-offs and validation you may have missed. There is no single right answer.

01
DESIGN QUESTION

Distinguish a default from a deliberate choice

Suppose you are designing a grocery cart. An item without a preference uses “Let the shopper choose a replacement.” Customers can also explicitly choose “Refund if unavailable.” Both currently appear as “Set,” leaving customers unsure what was selected.

  1. Task: Redesign only the preference summary and change action on the item card. Show two states: no choice has ever been made, and the customer explicitly chose a refund. Keep the rest of the cart and its rules unchanged.
  2. Deliver and check: Submit two local sketches with copy. Ask a reader what each card says should happen if the item is unavailable, which one is a system default, and where to change it. Use the answers to check whether the two states are confused.
Explore the reasoning
  1. Express both the current preference and where it came from, keeping a default distinct from a deliberate choice.
  2. Place the change action near the summary so customers can adjust it before ordering.
  3. Check the sketches with the three questions in the prompt, including whether readers distinguish a preference from the final purchase.