News Checkout Extensibility Deadline Moves Again: What Merchants Must Do Before Q4
The migration window narrows ahead of the holiday freeze. A short list of what breaks if you wait.
By Storefront Daily Research Desk · July 11, 2026
· 2 min read
Cite this report: Storefront Daily Research Desk (2026). “Checkout Extensibility Deadline Moves Again: What Merchants Must Do Before Q4.” Storefront Daily. https://storefrontdaily.com/news/checkout-extensibility-deadline/