Indicate the correct product selected
After changing the quantity, update the price before continuing with payment.
Check product selection before payment.
Review progress
Compare information and presentation in context of use.
Try the operation, change the status and continue working.
Check for details that are easy to miss when putting the design into use.
Progress is saved automatically in this browser.
GUIDANCE
After changing the quantity, update the price before continuing with payment.
EXAMPLES
Changing from 1 to 2 products updates total and expected fees with explanation.
Keep version, quantity, fee and final total information easy to compare.
Delete an item and then apply the code; The total must reflect both changes, not the old number.
Example The provisional total, delivery fee and total payment have three separate lines.