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Monthly summary

September 2026: what changed

The platform changes from September 2026 on one page: what needs action, who should do it, and the deadlines coming up. Print it, save it as a PDF or drop it into your next board pack or agency meeting.

← August 2026October 2026 →
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Needs action (1)

BigCommerce
BigCommerce merchants: review your third-party apps after the Ribon incident
  • Check if you used Ribon · You
  • Remove apps you don't use · You
  • Check what data each app can see · Your developer
  • Make app reviews a regular habit · You

Worth knowing (1)

Google
Google is switching on checkout inside AI Mode and Gemini for some Shopify stores

Deadlines in the next four months

18 December 2026Christmas 2026 last posting dates for Royal Mail, Evri, DPD and Parcelforce · UK delivery
1 January 2027Custom apps built for your store need a security setting before New Year · Shopify
1 January 2027Shopify Tax's free allowance stops resetting each year from 1 January · Shopify
1 January 2027New UK subscription rules start on 1 January 2027 · UK law
15 January 2027AI shopping assistants: a Shopify tool is being retired in January · Shopify
31 January 2027Google Shopping will reject product images smaller than 500 x 500 pixels · Google

From The Ecom Wire, https://www.ecomwire.co.uk/. Every story is checked by a person before publishing. Full details and sources are on each story page.