Episode 64 - When Shopify Functions Fail Silently: The 10KB Limit Nobody Told You About

Karl and Taylor are back for a solo episode packed with updates. Taylor breaks down major changes to the Shopify Theme Editor, a big B2B announcement that flipped the script on Plus-only features, and a raft of Dev Changelog items.

Karl shares a real-world debugging war story about a Shopify Function that was silently discarding all its input — and the 10KB metafield limit that caused it.

SponsorThe Support Heroes - https://thesupportheroes.com/?utm_source=lwSubscribe to Liquid WeeklyDon't miss out on expert insights and tips—subscribe to Liquid Weekly for more content like this: https://liquidweekly.com/Timestamps- 00:00 – Intro & Slim Jim nostalgia- 01:00 – Season 3 check-in- 02:20 – Shopify Theme Editor overhaul walkthrough- 08:00 – Markets in the Theme Editor: a common merchant gotcha- 09:30 – Session restore, Rollouts scheduling in the editor- 12:00 – Shopify SimGem (AI shopper simulation) overview- 15:00 – Karl's PromoParty Pro debugging war story- 19:00 – Shopify Functions: silent failures & the 10KB metafield limit- 22:00 – Dev Dashboard function logs deep dive- 26:00 – Discount function limits (25 per shop) & Functions vs. Shopify Scripts- 31:00 – Checkout extensibility, web components, and useful constraints- 33:00 – Shopify Dev Dashboard updates: Plus shops, role-based access- 36:00 – Headless Shopify app, Storefront API tokens & cart metafields- 37:00 – AuthCrate.shop by Dylan- 39:00 – Cart metafields copying to order metafields- 41:00 – Shopify Partner Town Hall recap- 43:50 – **The Big One: B2B features now available on non-Plus plans**- 50:00 – Taylor's table and chair rental business & Roth IRAs for kids- 56:00 – Dev Changelog rundown- 57:00 – Picks of the WeekResources- [PromoParty Pro](https://apps.shopify.com/promo-party-pro) – Karl's free gift with purchase app (co-built with Curt and Paul)- [AuthCrate.shop](https://authcrate.shop) – Dylan's tool for managing custom Shopify app authentication- [Shopify Headless App](https://apps.shopify.com/headless) – For generating Storefront API tokens without a custom app- [Shopify Dev Dashboard](https://shopify.dev/docs/apps/tools/partner-dashboard/dev-dashboard) – The developer-focused dashboard within the Shopify Partner portal- [Shopify Partner Town Hall Summary (SDA)](https://shopifydevalliance.com) – Taylor's recap in the SDA communityPicks of the WeekKarl: Quest Bake Soft Protein Frosted Cookies – Low-carb, keto-friendly cookies that actually taste good. 1g net carb

https://www.questnutrition.com/collections/cookiesTaylor: Granola AI – AI-powered meeting notes that listens locally without needing a bot invite. Works across Zoom, Slack, Teams, and Google Meet. Great for end-of-day debriefs when you're too tired to write things down yourself.

https://www.granola.so/