Where is it found?
I’ve only found it in the “Inventory adjustment changes” report.
What we know
Shopify describes it as:
Inventory group ID
Shopify identifier for the inventory group
Helps you:
Connect inventory performance data back to specific warehouse or store locations
Compare inventory management efficiency between different locations
Why am I asking?
Especially, why am I asking the developer community. Well, as a developer with an inventory management app, I care deeply about knowing, in detail, how Shopify manages inventory.
This report, in general, sheds a lot of light on Shopify’s management of inventory changes. More than we’ve ever seen before!
But, there are still some mysterious aspects. Such as this “inventory group id”.
What I know
From my testing, it seems to be a location ID. In the report that I’ve seen, it is the same for all inventory changes to a location.
BUT, it doesn’t match the location ID. So it is different.