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Data engineering

Stop Heroku Connect API Throttling Using Stacksync Sync

Stop Heroku Connect API throttling with Stacksync's real-time sync, which uses fewer API calls to prevent data delays and sync failures.

Stop Heroku Connect API Throttling Using Stacksync Sync

If you’re a developer relying on Heroku Connect, you’ve likely experienced the operational nightmare of API throttling. The frustrating delays, failed syncs, and cascading disruptions aren’t just minor glitches they are symptoms of an outdated architecture.

These problems are a direct result of Heroku Connect’s inefficient polling mechanism clashing with Salesforce’s finite API limits [7]. It’s time to stop managing a flawed system and start using Stacksync, a modern solution engineered from the ground up for intelligent, real-time synchronization that puts you back in control.

What Is Heroku Connect API Throttling?

API throttling is a protective measure used by platforms like Salesforce to maintain system stability and ensure fair use by limiting the number of API requests an application can make in a given timeframe [8]. When these limits are breached, the platform temporarily blocks new requests, effectively grinding your data pipeline to a halt.

Understanding the Limits

Salesforce API request limits are typically based on your organization's edition and user license count, often starting at 100,000 requests per day for paid editions [7]. Heroku Connect’s design, which relies on constant, scheduled polling, burns through this allowance by making API calls even when no data has changed. This inefficiency is compounded by Heroku's own platform limits, creating another layer of constraints for developers to manage [2].

The Consequences of Being Throttled

The moment your organization hits its API limit, the consequences are immediate and severe. Using Heroku Connect under these conditions can cripple your operations:

  • Synchronization Halts: Your data sync between Salesforce and Heroku Postgres is paused, leaving your applications with stale, outdated information.
  • Data Integrity Is Compromised: Your database falls out of sync with Salesforce, creating inconsistencies that can lead to incorrect reporting and flawed business logic.
  • Write Operations Fail: Critical updates sent from your application to Salesforce are rejected, leading to potential data loss and broken user workflows [5].
  • Applications Break: Any service relying on fresh, accurate data from Salesforce will fail, directly impacting user experience and disrupting core business functions.

Why Heroku Connect Hits API Limits

The fundamental reasons for Heroku Connect API throttling are baked into its architecture. The platform’s approach to synchronization is simply not optimized for the realities of modern, API-driven environments.

  • Constant Polling: Heroku Connect operates on a fixed-interval schedule, polling the Salesforce API every few minutes to check for updates [1]. Each poll is an API call, meaning thousands of calls are wasted daily just checking for changes that haven't happened.
  • Large Data Volumes: Initial syncs, bulk data migrations, or large-scale updates can decimate your daily API quota in minutes. Reading thousands of records from Salesforce is an API-intensive process that Heroku Connect is not equipped to handle efficiently [4].
  • Inefficient Data Sync: The platform often syncs entire objects when only a single field has changed. This lack of granular change detection results in redundant data transfer and wasteful API consumption.
  • Shared API Quotas: The Salesforce API quota is shared across every application connected to your organization. Your internal tools, marketing automation platforms, and other third-party integrations all draw from the same limited pool, making it dangerously easy to hit the ceiling once Heroku Connect’s constant polling is added to the mix.

How Stacksync Prevents API Throttling and Ensures Real-Time Sync

Stacksync is engineered to be a fundamentally superior alternative, delivering efficient, scalable, and truly real-time data synchronization. It was purpose-built to solve the exact architectural flaws that cause API throttling, empowering you to replace Heroku Connect with an affordable, real-time sync solution that scales.

Smart API Rate Limiting

Take back control with Stacksync’s built-in smart rate limiting. This powerful feature lets you define the maximum number of API calls made per second or minute, ensuring your integration operates predictably within Salesforce quotas. Stacksync intelligently manages its request queue to honor these limits, preventing throttling while maximizing data throughput. You can finally manage API rate limits with precision, aligning performance with your operational budget.

Real-Time, Event-Driven Architecture

Unlike Heroku Connect’s wasteful polling, Stacksync uses a modern, event-driven architecture. By leveraging webhooks and database triggers, Stacksync syncs data instantly only when a change occurs. API calls are used surgically and efficiently—precisely when they are needed and not a moment sooner. This eliminates thousands of wasted calls, slashes your API consumption, and enables true, sub-second data synchronization without the risk of throttling.

Intelligent Batching and Parallel Processing

Stacksync is built for performance at scale. It automatically batches multiple record updates into a single, optimized API call, dramatically reducing the number of requests required. For large volumes like initial backfills or bulk migrations, Stacksync parallelizes processes to sync data faster without overwhelming the API. This powerful combination of intelligent batching and parallelization delivers a highly reliable and efficient sync, making it possible to bypass Salesforce API limits that would otherwise bring your operations to a standstill.

Stop Throttling: A Step-by-Step Guide to Using Stacksync

Migrating from Heroku Connect to Stacksync is a simple, fast process designed to deliver an immediate return on investment through superior performance and lower costs.

Step 1: Set Up Your Stacksync Account

Get started by signing up for a Stacksync account. With our 14-day free trial, you can validate the performance and see the results for yourself. Once registered, create a new sync from your dashboard.

Step 2: Connect Your Apps

In the Stacksync dashboard, securely connect your Salesforce and Heroku Postgres instances. Our platform uses standard, secure protocols like OAuth 2.0, so your credentials remain protected and connections are established in seconds.

Step 3: Configure Smart Rate Limits

Navigate to your Salesforce connection settings to access the API rate limit controls. For optimal performance without risking throttling, we recommend a setting between 5 to 10 requests per second. This ensures a consistent, real-time data flow while staying comfortably within Salesforce limits. You can find detailed instructions in our documentation to manage API rate limits.

Step 4: Map Your Data and Go Live

Use Stacksync's intuitive, no-code interface to map objects and fields between Salesforce and your Postgres database. Our platform provides automatic mapping suggestions to accelerate the setup. Once configured, activate the sync. After verifying data is flowing correctly, simply deactivate your old Heroku Connect instance to complete the migration. This move not only solves throttling but also introduces a more predictable and transparent cost structure, as shown in our comparative analysis of pricing models.

Conclusion: Move Beyond Throttling with a Smarter Sync Solution

The chronic issue of heroku connect api throttling is an unavoidable consequence of an outdated, polling-based architecture that is fundamentally unsuited for today's dynamic, API-driven world. The constant sync failures, data latency, and unpredictable costs are not problems you should have to manage—they are signs that you’ve outgrown your tool.

Stacksync offers the definitive solution by replacing inefficient polling with an intelligent, event-driven architecture. Our smart rate limits, real-time change detection, and efficient batching are engineered to deliver robust, scalable, and reliable data synchronization without ever hitting API quotas. By switching to Stacksync, you can eliminate throttling, guarantee data consistency, and significantly reduce your Heroku Connect costs.

Stop letting API limits dictate your operational efficiency. Book a demo or sign up for a free trial today to experience a data sync solution built for modern performance and scale.

→  FAQS
How does Stacksync prevent hitting Salesforce API limits when Heroku Connect can't?
Stacksync uses an event-driven architecture, which means it only makes API calls when data actually changes. This is different from Heroku Connect's constant polling, which consumes API credits even when there are no updates. Additionally, Stacksync includes smart rate-limiting and intelligent batching features that bundle multiple changes into fewer API calls and ensure your usage always stays within the Salesforce limits you define.
Can I use Stacksync for just one-way sync from Salesforce to Heroku like I do with Heroku Connect?
Yes, you can configure Stacksync for either one-way or two-way synchronization. You have granular control over the direction of data flow for each object you map. This allows you to replicate your existing Heroku Connect setup for a one-way sync to Heroku Postgres or easily enable bidirectional sync for more advanced use cases without risking API throttling.
What happens if my data sync fails in Stacksync due to an API issue?
Stacksync is designed for reliability and provides a dedicated issue management dashboard. If a sync fails for any reason, including temporary API unavailability, the platform logs the error and allows you to retry the failed operation with a single click once the issue is resolved. This prevents silent failures and ensures data integrity without manual intervention.
Is it difficult to switch from Heroku Connect to Stacksync?
Migrating from Heroku Connect to Stacksync is a straightforward process. The platform offers a no-code setup where you can connect your Salesforce and Heroku database accounts, map your objects and fields through a visual interface, and configure your rate limits in minutes. After setting up the sync in Stacksync, you can simply pause your Heroku Connect add-on to complete the switch.
Does Stacksync use more or fewer API calls than Heroku Connect for the same amount of data?
Stacksync uses significantly fewer API calls than Heroku Connect for the same amount of data. Because it operates in real-time and only processes actual data changes, it eliminates the thousands of unnecessary API calls that Heroku Connect makes every day just to check for updates. This optimized approach not only prevents throttling but also makes your data integration more efficient and cost-effective.