Shopify does not understand inventory variable and over add to cart. ETSY RELATED

Retired Boards Appdev Fulfillment Api

Topic summary

A jewelry seller is experiencing inventory tracking issues when syncing their Etsy store to Shopify.

The Problem:

  • Products have two independent variables: pendant color (2 white, 2 yellow = 4 total) and necklace length (10 of each size = 20 total)
  • Customers should only be able to purchase 4 pendants total before the listing shows as sold out
  • Shopify incorrectly allows customers to add 4 white pendants (2 with 14" chain + 2 with 16" chain), exceeding the actual inventory of 2 white pendants

Attempted Solutions:

  • Tried bundling apps like Trunk Inventory, but it only tracks inventory after checkout (not during cart addition)
  • Explored apps like Niximax that require manual input for each variant, which is impractical given their large product catalog

Current Status:

  • Seeking a code or plugin solution that works with Etsy’s inventory structure
  • On Etsy, the setup allows customers to purchase pendants with or without necklaces
  • Looking for a way to make Shopify properly understand and enforce these inventory constraints
Summarized with AI on November 8. AI used: claude-sonnet-4-5-20250929.
1

I am syncing etsy store to my shopify.
My variation

Variable 1
white pendant quantity 2

yellow pendant quantity 2

Variable 2

necklace 14 quantity 10

necklace 16 quantity 10

I want to be able to set 4 pendants and 20 necklaces as variables together. Once my 4 quantity of pendant is sold out , the post will just say sold out even though there will be chains remaining. Shopify doesn’t understand and would allow customer to add 2 white pendant with size 14 inch and 2 white pendant with 16 inch necklaces into their cart. This results total 4 white pendant when I only have 2 available .Iv tried bundling with apps like Trunk inventory without success, Trunk tech said there app only understands once the item is checked out. Etsy is very limited on inventory options so I would have to start with etsy and make shopify work with it. I have included photo of how my etsy inventory is set up so customer can purchase pendant with necklaces or without. Is there a code I can plug-in? I have tried apps such as order limits minmaxify, they require manually input but I cannot input all because I have a lot of products / variants

link of example https://tigrisjewelryco.com/products/cubic-zirconia-cross-376183305

ETSY INVENTORY PAGE

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SHOPIFY STORE

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