https://sonarly.com/issue/15476?type=bug View create/update/delete operations trigger a background error during cache invalidation because the flat role target map builder throws when a roleTarget references a role with missing or null `universalIdentifier`. The mutation succeeds but the UI hangs briefly waiting for cache invalidation to resolve. Fix: The fix addresses the root cause in two cache services that build flat role target maps from database entities: **1. `workspace-flat-role-target-map-cache.service.ts`** — The `computeForCache` method now pre-filters roleTargets before passing them to `fromRoleTargetEntityToFlatRoleTarget`. RoleTargets whose `roleId` or `applicationId` reference entities that either don't exist or have null `universalIdentifier` are skipped with a WARN-level log. This prevents the `FlatEntityMapsException` from being thrown during cache recomputation, which was crashing every view mutation on upgraded instances. **2. `workspace-flat-role-target-by-agent-id.service.ts`** — Same fix applied to the agent-specific role target cache, which has the identical vulnerability. Without this fix, any operation that triggers `flatRoleTargetByAgentIdMaps` recomputation would also crash. The validation in `fromRoleTargetEntityToFlatRoleTarget` is intentionally preserved — it serves as a safety net for programming errors where the caller passes incomplete maps. The pre-filtering in `computeForCache` handles the data integrity scenario (orphaned/incomplete data from upgrades) at the appropriate layer.
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Installation
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Why Twenty
We built Twenty for three reasons:
CRMs are too expensive, and users are trapped. Companies use locked-in customer data to hike prices. It shouldn't be that way.
A fresh start is required to build a better experience. We can learn from past mistakes and craft a cohesive experience inspired by new UX patterns from tools like Notion, Airtable or Linear.
We believe in open-source and community. Hundreds of developers are already building Twenty together. Once we have plugin capabilities, a whole ecosystem will grow around it.
What You Can Do With Twenty
Please feel free to flag any specific needs you have by creating an issue.
Below are a few features we have implemented to date:
- Personalize layouts with filters, sort, group by, kanban and table views
- Customize your objects and fields
- Create and manage permissions with custom roles
- Automate workflow with triggers and actions
- Emails, calendar events, files, and more
Personalize layouts with filters, sort, group by, kanban and table views
Customize your objects and fields
Create and manage permissions with custom roles
Automate workflow with triggers and actions
Emails, calendar events, files, and more
Stack
- TypeScript
- Nx
- NestJS, with BullMQ, PostgreSQL, Redis
- React, with Jotai, Linaria and Lingui
Thanks
Thanks to these amazing services that we use and recommend for UI testing (Chromatic), code review (Greptile), catching bugs (Sentry) and translating (Crowdin).
Join the Community
- Star the repo
- Subscribe to releases (watch -> custom -> releases)
- Follow us on Twitter or LinkedIn
- Join our Discord
- Improve translations on Crowdin
- Contributions are, of course, most welcome!




