Seven Engineering Challenges in Real-Time Enterprise Data Synchronization

The Seven Engineering Problems That Make Real-Time Enterprise Sync Almost Impossible

Ruben Burdin spent 18 months attempting to synchronize two databases in real-time before founding Stacksync. His initial prototype crashed after only 10,000 records, highlighting the fragility of naive sync implementations.

Why This Matters

Engineering teams often mistake real-time synchronization for a simple pipeline when it is actually a distributed systems problem involving sovereign systems like Salesforce and Postgres. Failure to account for non-shared clocks and adversarial rate limits leads to data corruption or hitting Salesforce API limits—which can be as low as 100,000 calls per day for mid-sized firms—rendering internal tools useless within hours.

Key Insights

• Polling is limited by API quotas; a mid-size company with 100 users on Salesforce receives roughly 100,000 API calls per day (Ruben Burdin, 2026).
• CDC recovery requires complex logic; Salesforce CDC only offers a 72-hour retention window for event replay if listeners fail.
• Bidirectional sync is a consensus problem; field-level conflict detection is required because systems lack a shared clock or transaction log.
• Schema evolution is dynamic; Stacksync manages thousands of automatic live migrations per week as Salesforce admins add or rename fields.
• Ordering requires dependency graphs; child records like Contacts must be held until parent Accounts exist to prevent foreign key failures.

Practical Applications

• Use Case: CRM to Database sync for internal portals; Pitfall: Using last-write-wins at the record level, which discards concurrent updates to different fields.
• Use Case: Real-time inventory updates; Pitfall: Implementing synchronous NetSuite SuiteScript triggers that hang the UI during user save operations.
• Use Case: Multi-system data orchestration; Pitfall: Relying on HubSpot webhooks which batch changes without guaranteed ordering, causing corrupted foreign keys.

References:

• https://dev.to/ruben-burdin/the-seven-engineering-problems-that-make-real-time-enterprise-sync-almost-impossible-9hf