# Pull Request Template
## Description
Prevents Chatwoot Cloud accounts from exceeding their daily non-channel
email allowance through agent invitations. New-user invitations
atomically reserve email capacity before mail is queued; when the budget
is exhausted, agent creation rolls back and returns HTTP 429.
This covers single and bulk agent creation. Self-hosted installations
remain unaffected, and adding an existing user does not consume capacity
when no invitation is sent.
Related to
[CW-7637](https://linear.app/chatwoot/issue/CW-7637/prevent-agent-invitation-email-abuse-after-july-20-incident).
## Type of change
- [x] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality not to work as expected)
- [ ] This change requires a documentation update
## How Has This Been Tested?
Verified single and bulk creation at an exhausted budget, successful
invitation enqueueing below the limit, no capacity usage for existing
users, and no enforcement on self-hosted installations. A concurrent
Redis probe admitted exactly five of twenty simultaneous reservations
against a limit of five.
## Checklist:
- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [x] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules
- Initialize an "enterprise" folder that is copyrighted.
- You can remove this folder and the system will continue functioning normally, in case you want a purely MIT licensed product.
- Enable limit on the number of user accounts in enterprise code.
- Use enterprise edition injector methods (inspired from Gitlab).
- SaaS software would run enterprise edition software always.
Co-authored-by: Pranav Raj S <pranav@chatwoot.com>
