Hello @JuusoPalander
Currently all shops have a variant limit at 100. We will be raising the limits for all shops in early 2025.
Developers have to migrate their apps to the new APIs (breaking changes) released in 2024-04. At the end of the migration period in early 2025, we will be raising the variant limit for shops. If we raise the variant limit on shops right now, lots of apps on previous API versions will face errors.
You can try out the higher variant limit on dev stores by setting up a developer preview. See instructions here:
https://shopify.dev/docs/api/release-notes/developer-previews#increased-variants-developer-preview