Subscription — References

Recurring enrollment, booking, and billing.

This English page mirrors the Vietnamese route and summarizes source specs, code anchors, and related pages. Keep technical names in English because they match the codebase.

What this page covers

Area	Summary
Domain purpose	Recurring enrollment, booking, and billing.
Main readers	Product, support, and engineers who need the same route structure in English.
Source of truth	OpenSpec specs and the current codebase remain authoritative.

Core objects

• Subscription
• Enrollment
• BillingSchedule
• Invoice
• Add-on / Discount
• Term

Typical flow

1. Create a subscription template.
2. Enroll an attendee.
3. Build a billing schedule.
4. Generate invoices.
5. Handle add-ons, discounts, skips, and booking constraints.

Where to look in the repo

• openspec/specs/subscription*
• Tuke subscription pages
• Tux subscription services

Related pages

• Overview
• End-user view
• Concepts
• Architecture
• Codebase flow
• Common cases
• References
• Booking — normal booking; intersects on the double-booking guard.

If this English summary differs from the Vietnamese page or the code, trust OpenSpec/code first and update the wiki.