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Notes from the build

eCommerce and product notes from our own projects.

Platform comparisons, CRO research, MVP scoping and performance work, written by Sayan Saha, with the things we got wrong left in.

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40

articles, written by Sayan Saha

7

topics, from checkout to brand

01Featured

Latest writing.

Commerce, conversion, product and design, written by Sayan Saha.

  1. 16 Aug 2026eCommerce12 min read

    COD, UPI and returns: Indian D2C economics that work

    What a refused COD parcel really costs, the five numbers to measure, nine levers for prepaid share and RTO in the order we would pull them,…     COD, UPI and returns: Indian D2C economics that actually work
  2. 11 Aug 2026eCommerce12 min read

    Shopify Plus vs a custom build: how to decide

    What an enterprise commerce plan actually buys, the three boundaries where it stops, the four questions that decide a custom build, and the middle option that…     Shopify Plus versus a custom build: how to decide
  3. 8 Aug 2026eCommerce12 min read

    Headless commerce: when it is worth it, when it is an expensive mistake

    The honest threshold for headless commerce: the three reasons that justify it, the five-question test, what you take on that used to be included, and the…     Headless commerce: when it is worth it and when it is an expensive mistake
  4. 4 Aug 2026eCommerce12 min read

    Amazon to D2C: what it takes to own the customer

    The honest arithmetic of moving from Amazon to direct: what the fee was actually buying, the four capabilities you take on, why day one is silent,…     Amazon to D2C: what it takes to own the customer
  5. 31 Jul 2026eCommerce13 min read

    Shopify vs WooCommerce for brands doing $500k+

    A Shopify vs WooCommerce comparison written for stores at scale: checkout control, the cost curve, who maintains it, dependency shape, and the five claims that do…     Shopify vs WooCommerce for brands doing $500k or more
  6. 26 Jul 2026eCommerce12 min read

    Selling a heavily regulated product online: what stops you

    Payment processor redundancy, state-level restriction as a data model, what you cannot say in product copy, and why acquisition inverts when you cannot buy traffic.     Selling a heavily regulated product online: six gatekeepers, each with a policy stricter than the law
  7. 22 Jul 2026Conversion & Growth13 min read

    Mobile checkout: where the money leaks

    The eight mechanical leaks in a mobile checkout, how to tell a behavioural gap from a fixable one, the five states worth forcing on a phone,…     Mobile checkout: where the money actually leaks
  8. 19 Jul 2026Conversion & Growth12 min read

    Eight product pages taken apart: what converts, what doesn’t

    Eight anonymised product page teardowns across eight categories, the eight questions every product page has to answer, the failures that repeat, and a scorecard to run…     Eight product pages taken apart: what converts and what does not
  9. 14 Jul 2026Conversion & Growth13 min read

    How many visitors do you need before an A/B test means anything?

    The sample size arithmetic behind A/B testing, a table you can read against your own traffic, the five mistakes that make bad tests worse, and what…     How many visitors an A/B test actually needs before it means anything
  10. 10 Jul 2026Conversion & Growth12 min read

    Average order value beats conversion rate: the maths most stores get wrong

    Why average order value is usually the easier lever, the arithmetic that compounds it with conversion, five mechanics in order, and how to set a free…     Average order value beats conversion rate: the maths most stores get wrong
  11. 6 Jul 2026Conversion & Growth12 min read

    The checkout audit: what we check before touching a single pixel

    The eight-station checkout audit we run before any design work, the five run-throughs everyone skips, the findings that recur across every store, and how to prioritise…     The checkout audit we run before touching a single pixel

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