How do I sync data between my app and Salesforce?

To sync data between your app and Salesforce, you generally need to decide what kind of sync you want:

1. One-way sync
   • Your app → Salesforce, or Salesforce → your app
2. Two-way sync
   • Changes in either system update the other
3. Real-time vs scheduled
   • Real-time: updates happen immediately
   • Scheduled/batch: updates run every few minutes or hours

Common ways to sync with Salesforce

1. Use Salesforce APIs

This is the most flexible approach.

• REST API: best for most CRUD operations
• Bulk API: best for large data loads
• SOAP API: older, still used in some enterprise setups
• Composite API: useful for reducing round trips
• GraphQL API: if available in your org/use case, good for fetching structured data

Typical flow:

• Authenticate with Salesforce using OAuth 2.0
• Query or update records using the API
• Track record IDs and timestamps to detect changes

2. Use Change Data Capture or Platform Events

If you need near real-time syncing:

• Change Data Capture (CDC): Salesforce publishes record changes
• Platform Events: custom event-driven integration
• Your app subscribes and reacts to changes

This is ideal for:

• near real-time updates
• event-driven architectures
• reducing polling

3. Use Salesforce outbound/inbound integrations

Depending on your architecture:

• Outbound messages from Salesforce to your app
• Apex callouts from Salesforce to your backend
• Custom REST endpoints in your app that Salesforce calls

4. Use middleware / iPaaS

If you want less custom code:

• MuleSoft
• Workato
• Zapier
• Boomi
• Informatica
• Make

These can help with mapping, retries, monitoring, and transformations.

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Recommended architecture for most apps

For simple sync

• Authenticate with OAuth
• Use REST API
• Store Salesforce record IDs in your app
• Use lastModifiedDate or a custom sync field to detect changes
• Run scheduled jobs to reconcile

For real-time sync

• Use CDC or Platform Events from Salesforce
• Have your app process events
• Use REST API to write back changes when needed

For two-way sync

• Define a source of truth for each field or object
• Keep a sync mapping table:
  • app record ID
  • Salesforce record ID
  • last synced timestamp
  • version/hash
• Use conflict resolution rules:
  • latest update wins
  • Salesforce wins
  • app wins
  • manual review for conflicts

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Key things to get right

Authentication

Most integrations use:

• Connected App
• OAuth 2.0
• refresh tokens or JWT bearer flow for server-to-server auth

Data mapping

Map your internal objects to Salesforce objects like:

• Account
• Contact
• Lead
• Opportunity
• Custom objects

Sync strategy

Decide:

• what fields sync
• which system is authoritative
• how to handle deletes
• how to handle duplicates

Error handling

Build in:

• retries with backoff
• dead-letter queue or error log
• idempotency to prevent duplicate writes
• monitoring/alerts

Rate limits

Salesforce has API limits, so:

• batch requests when possible
• avoid excessive polling
• cache results where appropriate

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Example approach

If your app has customer records and you want to sync to Salesforce:

1. Create a Connected App in Salesforce
2. Authenticate your backend via OAuth
3. Create or update an Account/Contact using REST API
4. Save the Salesforce record ID in your database
5. Use webhook/event handling or scheduled sync to detect changes
6. Resolve conflicts and update the other system

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If you want a practical implementation

I can help you with any of these:

• a Node.js / Python / Java example
• OAuth setup for Salesforce
• real-time sync using CDC
• two-way sync design
• schema mapping for your app’s objects
• middleware recommendation

If you tell me:

• your app stack
• whether you want one-way or two-way sync
• what objects you need to sync

…I can give you a concrete implementation plan.