How to create a Color ID map in Maya for Substance Painter

[@thomasboudron183]

Thanks a lot for these informations, I'v just understood my problem with the udims !

[@Pussik]

This workflow is so inefficient.
Imagine typical task of making set of 50 assets.
Are you going to bake and save 50 textures?
Then import one (Perhaps there is batch import at least) by one and pick one by one to assign in substance painter?

[@Kinkoyaburi]

How would you do it?