We are just trialing Hudu and IT Glue at the moment, and I ran into this. This honestly might be a deal breaker. Huge administrative overhead without this.

Yes, massive +1. Adding "Portal User" as a JIT provisioning default role would save much time and headache for our org. Most of the users only need portal access, and manually creating their accounts is inefficient. Please strongly consider implementing this, Hudu!

this really should be an option, we have hundreds of customers and creating their accounts individually is a massive headache.

creating portal members and assigning their default company group please.

Yes, please add support for bulk creation or directory-based provisioning of Portal Users (via SSO, or CSV) to streamline onboarding for organizations with large external user groups (e.g. 400 External Portal Members).