# Project Modules

Documentation for project-specific modules

| Module        | Backend                                                                                              | Frontend            | Documentation                                                                                                                                             |
| ------------- | ---------------------------------------------------------------------------------------------------- | ------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Custom Fields | `GET`/`POST` `/api/custom-fields` — authenticated, tenant-scoped metadata for contact dynamic fields | Not yet implemented | [ERP foundation next steps](../../.hermes/plans/2026-09-01_144533-erp-foundation-next-steps.md#step-5-implement-metadata-and-custom-fields-configuration) |