Conversion

Festive Sale Readiness — A Checklist for Online Stores

Peak sales expose every weakness in a store at the moment it costs most. Use this checklist to prepare for Diwali, end-of-season, and other major sales, covering speed, checkout, coupons, tracking, and what to watch during the event.

Purushottam Kumar Suman
Purushottam Kumar SumanSeptember 18, 20267 min read
Founder & CEO, DeepSync
Online store preparing for a festive sale

Short answer: prepare in three stages. Two weeks out, fix known friction and freeze risky changes. In the final days, test every coupon and the full checkout on a phone. During the sale, watch real sessions and errors in the first hour and at each traffic peak. Most sale-day losses come from a broken coupon, a slow page, or a payment problem that a test order would have caught.

Table of Contents

  1. Two Weeks Before
  2. The Final Days
  3. Launch Hour
  4. During the Sale
  5. Afterwards
  6. Key Takeaways

Two Weeks Before

Fix what you already know

  • [ ] Review your purchase funnel by device and fix the weakest step
  • [ ] Watch twenty recent mobile checkout sessions for friction
  • [ ] Clear outstanding JavaScript errors on product, cart, and checkout pages
  • [ ] Check real-user load times for top landing and product pages on mobile

Reduce risk

  • [ ] Freeze theme changes and new apps or plugins
  • [ ] Remove unused apps and scripts to lighten pages
  • [ ] Confirm hosting and payment gateway limits with your providers
  • [ ] Back up the site

Record a baseline

  • [ ] Funnel conversion by step and device
  • [ ] Payment success rate by method
  • [ ] Page speed
  • [ ] Normal error levels

Without a baseline, you cannot tell on the day whether a number is alarming or ordinary (comparing periods).

The Final Days

Offers

  • [ ] Test every coupon code on a phone, including minimum order rules (coupon UX)
  • [ ] Confirm automatic discounts apply to the right products
  • [ ] Check that sale prices display consistently on listing, product, and cart pages
  • [ ] Verify free-delivery thresholds and any COD fee

Checkout

  • [ ] Place a real test order with each payment method
  • [ ] Test UPI from a social app's built-in browser (UPI drop-off)
  • [ ] Test COD and its confirmation step
  • [ ] Check address and pincode validation
  • [ ] Confirm order emails and messages are sent

Pages

  • [ ] Load the sale landing page on a mid-range phone over mobile data
  • [ ] Check that every campaign link goes to the right page, with UTM tags (UTM guide)
  • [ ] Check stock levels and what an out-of-stock product shows (out-of-stock pages)
  • [ ] Check banners and popups do not cover the buy button on mobile

Tracking

  • [ ] Confirm purchase events fire once, with the correct value
  • [ ] Check your session allowance. A sale can use a month's quota in days. DeepSync pauses recording at the cap and never charges overages, so upgrade beforehand if you need full coverage (session limits)

People

  • [ ] Decide who is watching what, and when
  • [ ] Agree what triggers a rollback or a pause in ads
  • [ ] Brief support on the offers and likely questions

Launch Hour

The first hour finds most problems.

  • [ ] Watch real sessions arriving from the campaign. With live session view on Pro and above you can watch as they happen
  • [ ] Confirm real orders are completing, by each payment method
  • [ ] Check for new errors on cart and checkout
  • [ ] Check the coupon is applying for real shoppers
  • [ ] Watch page speed as traffic rises
  • [ ] Look for rage clicks on sale pages

If orders are not completing, pause paid traffic while you find out why. Every click during a broken checkout is wasted spend.

During the Sale

Check at each traffic peak, usually evenings and the final hours.

WatchSign of trouble
Funnel step conversion against baselineA step falling sharply
Payment success rateA method failing
Errors by sessions affectedA new group appearing
Page speedSlowing under load
StockBest sellers running out
Coupon failuresA spike in error events
Support messagesRepeated complaints about one thing

Watch a handful of non-converting mobile sessions each day. Problems under load differ from problems in testing.

Avoid shipping changes mid-sale unless something is broken. If you must, change one thing and watch it.

Afterwards

  • [ ] Conversion and revenue by campaign, from attribution
  • [ ] Funnel against baseline: which step held and which did not
  • [ ] Payment failures by method and browser
  • [ ] Refusals and returns over the following weeks, by campaign (COD)
  • [ ] Errors encountered and when they began
  • [ ] What new customers looked at
  • [ ] A written list of what to do differently

Write this within a week, while recordings and memory are fresh. It is the most useful document you will have for the next sale.

Place a test order every morning of the sale

On a phone, with the sale coupon. It takes three minutes and catches what monitoring misses.

Key Takeaways

  • Fix known friction and freeze changes two weeks ahead.
  • Test coupons and every payment method on a phone.
  • Watch real sessions and errors in the launch hour.
  • Write up lessons within a week.

Conclusion

A sale multiplies everything about your store, including its faults. Find them in a test order before your customers find them in a real one.

Start free with DeepSync.

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