How can I tag pre-orders in Shopify flow when item quantity is zero?

Shopify Plus

Topic summary

A user wants to automatically tag orders as “pre-order” using Shopify Flow when any item has zero or negative available quantity at a specific location.

Current Issue:

  • The existing flow isn’t working correctly
  • It appears to be checking inventory across all locations rather than a specific one

Recommended Solution:
A respondent identified the problem: the flow contains an incorrect loop in the condition logic. Instead of the current path, the condition should follow:

  • order / lineItems / variant / inventoryItem / inventoryLevels / available

The corrected condition should check:

  • If at least one line item has at least one inventory level where available <= 0 AND location.name == "Warehouse" (or the specific location name)

This targets location-specific inventory rather than global inventory across all locations.

Summarized with AI on November 15. AI used: claude-sonnet-4-5-20250929.
1

I would like to tag orders with a pre-order tag using shopify flow when -

any item on the order has available quantity <=0 for a specific location.

Our current flow is not working correctly as it is looking at quantity across all locations.

My Flow trigger is order created.

Attached screenshot of current flow.

ZLA1_0-1697595551201.png
ZLA1_0-1697595551201.png637Ă—1178 37.1 KB

2

You have a loop in that condition (order / lineItems / variant / inventoryItem / variant), which you should remove. That is NOT checking location inventory. Instead you should check:
order / lineItems / variant / inventoryItem / inventoryLevels / available (its under deprecated)

Overall your condition should look close to this:

if at least one of order / lineItems
 if at least one of variant / inventoryItem / inventoryLevels
     level_item.available <= 0
     AND
     location.name == "Warehouse"
2 Likes