Catalog API "Category subcategory selection not supported" error on some categories while not others

When using the External Catalog Queries | Roblox Creator Documentation like documented here, I am not able to sort the search properly some search paramaters go through while others error with:
{"errors":[{"code":1,"message":"Category subcategory selection not supported.","userFacingMessage":"Something went wrong"}]}

Example:
Subcategory 5 works: https://catalog.roblox.com/v1/search/items/details?Subcategory=5
But not subcategory 20: https://catalog.roblox.com/v1/search/items/details?Subcategory=20

Does anyone know why this happenes? The search parameters I have tried are all from the documentation might it be outdated? And if so where can I find the updated parameters for this API.

Likely because Subcategory 5 is actually a category (Gears) whilst 20 is an actual Subcategory for accessories, think you need to also specify the main category for that, so

https://catalog.roblox.com/v1/search/items/details?Category=11&Subcategory=20 would be what you need to do as category 11 is accessories

That link gave the same error, click the link

2 Likes

Didn’t error for me oddly enough

image
that makes things 10x more confusing what?!