The longer IT runs, the longer the interface list: ERP to MES, MES to WMS, WMS to finance, OA again. Each new system adds dedicated lines. Everything looks connected—yet when a customer renames or a material spec changes, some systems sleep. Silos become interface silos.
Point-to-point saves emergencies—not architecture. The backbone should be master-data changes published as events to all subscribers.
Why point-to-point rots
Mappings live in each project with no shared customer or material identity; retries are manual; every new consumer needs another interface. More systems mean a spider web nobody dares touch.

Minimum stable structure
- Create customer, material, organization, and account in one place only.
- Publish changes as events—downstream subscribes instead of polling foreign databases.
- Failed deliveries replay; dead letters alert—never silently drop updates.
- New apps subscribe to master data by default—not another dedicated line.

The XYN digital intelligence system builds business apps on unified org and master data, reducing per-module custom integration. Interfaces can exist—they should not be the corporate nervous system. Events and master data should.