How to Add Native, User-Facing Integrations to Your SaaS

On this page

1. Choose integrations from customer evidence
2. Define the job, not the connection
3. Design the connection experience
4. Get the architecture right
5. Ship small, then expand
6. Plan for maintenance
7. Where Pathfix fits
8. Frequently asked questions

A native integration lives inside your product. The customer clicks "Connect", authorizes their account in another tool, and the feature works without them leaving your interface or configuring anything elsewhere.

That's different from pointing customers to an automation tool or publishing an API and hoping someone builds on it. Native integrations take more work, but they're the ones customers notice and keep using.

This guide covers how to plan and build them.

Choose integrations from customer evidence#

Start with what customers actually ask for and what prospects need to buy:

• Sales calls and lost-deal notes that mention specific tools.
• Support tickets asking "do you work with X?".
• Which tools your best customers already use alongside your product.
• Workflows customers currently do by exporting and importing CSV files.

Rank candidates by how many customers need them and how central they are to your product's value, not by how impressive the logo looks on your website.

Define the job, not the connection#

"Integrate with HubSpot" isn't a spec. "When a deal closes in HubSpot, create a project in our product with the deal's contacts" is.

For each integration, write:

1. The trigger: what starts it, such as a user action, a schedule or an event in the other system.
2. The data: which records and fields are involved, and in which direction.
3. The result: what the customer sees in your product.
4. The failure behaviour: what happens if the other system is unavailable or access is revoked.

This keeps the first version small and testable.

Design the connection experience#

The connection flow is the customer's first impression of the integration.

• Put the "Connect" button where the feature is used, not only on a settings page.
• Explain before the redirect what the integration will do and what access it needs.
• After connecting, show which account is connected and what happens next.
• Let customers disconnect easily, and explain what happens to data already synced.
• Show connection status clearly, with a "Reconnect" action when something breaks.

Get the architecture right#

Authorization#

Most business tools use OAuth for access to customer data. Each connection must be tied to the right customer and user, tokens must be stored securely and refreshed, and broken connections must be detected.

Data movement#

Decide between:

• On-demand reads, fetching data when the user needs it.
• Scheduled sync, copying data periodically.
• Event-driven sync, reacting to webhooks from the other system.

Many integrations combine webhooks for freshness with scheduled reconciliation to catch anything missed.

Mapping#

Map the other system's fields to your data model explicitly. Decide what happens with fields that don't map, custom fields, and records deleted on either side. If data flows both ways, decide which system wins when both change.

Rate limits and volume#

Providers limit API usage, often per customer account. Initial syncs for large customers can take a long time. Queue work, back off on 429 responses, and show progress.

Ship small, then expand#

Release the narrowest useful version to a few customers. Watch:

• How many who start connecting finish.
• How many reach the first useful result.
• Which errors occur in practice.
• What customers ask for next.

Expand scope based on that, rather than building every possible field and direction up front.

Plan for maintenance#

Integrations need care after launch. Providers deprecate API versions, change scopes, alter rate limits and require app re-verification. Assign an owner for each integration and subscribe to the provider's developer announcements.

Where Pathfix fits#

The authorization layer is the same work for every native integration. Pathfix OAuth handles the OAuth flow, token storage, refresh and authenticated API passthrough across 350+ providers, using your own OAuth apps and credentials, so consent screens show your brand. Your team builds the integration logic, data mapping and user experience.

When an integration needs multi-step workflows or event handling per connected user, Pathfix Automation can run those workflows in each user's context.

Frequently asked questions#

How many integrations should we launch with?#

Usually one or two that matter most to your customers, done well. Breadth can come later.

Should we build a public API first?#

A public API serves technical customers and partners. Native integrations serve everyone else. Many products eventually need both.

Who should own integrations?#

A named team or engineer per integration, with product input on scope. Unowned integrations break quietly.