Understanding API vs Native Apps: QuickBooks
Choosing between an API-only app and a native app to integrate QuickBooks with Salesforce? We break down the key differences to help you decide.
Gerhard Dohne
February 18, 2021
Updated August 28, 2026
One of the biggest questions when deciding how to integrate QuickBooks with Salesforce is choosing between an API Only App and a Native App.
API-only vs native app for QuickBooks and Salesforce, in one line: an API-only (or iPaaS) app runs outside Salesforce and shuttles data between systems in the background; a native app is installed inside Salesforce from the AppExchange, with pre-built objects, tighter mapping, and a UI your team sees. API-only tools are flexible when connecting many systems; native apps are simpler and deeper when you just need QuickBooks and Salesforce in sync.
The correct choice will depend on your business needs. We explain the difference between the two below.
API Only Apps
An API-only app does not include any Salesforce objects, pages, or workflow. In fact, it isn’t installed into Salesforce at all but instead connects to Salesforce. This means that the API-only app will move data back and forth between Salesforce and QuickBooks, but your users will not log in to the app or see anything different when using Salesforce. An API-only app will work in the background, constantly checking data in each system, and pushing data back and forth when triggered by certain events.
Some API-only apps are only capable of creating records, while others are capable of updating records.
Because API-only apps do not include any custom objects in Salesforce, they are usually configured to connect to standard Salesforce objects. So, it’s typical for a Salesforce opportunity or Salesforce quote to be synced to a specific QuickBooks invoice, and for a Salesforce account to be synced with a specific QuickBooks invoice. This is powerful as your users can continue working with the objects that they are familiar with.
However, this approach can cause problems. For instance, if you ever want to raise a second invoice on the same Opportunity, or connect a second QuickBooks contact to the same Salesforce account, you can’t do this. To get around this, some people will create their own custom objects in Salesforce and write custom mappings (or custom scripts) in the API app to push and pull data out of these custom objects.
One of the strengths of an API-only app is that it can connect to many things, not just QuickBooks. So, for instance, when an opportunity is marked as closed-won, not only will an invoice and optionally a QuickBooks company be created, but an email might be sent via MailChimp and a note created in Evernote or Basecamp.
One of the challenges of an API-only app, at least if you write your own mapping and scripts, is that the data accuracy is ultimately up to you. So if you find that the data in one system is not what you want it to be, this might be the responsibility of you and your consultant, not the API app, as they executed your script correctly but it was the script itself that has errors.
Today, many API-only tools take the form of general-purpose iPaaS platforms like Zapier, Celigo, or Workato — the same “runs outside Salesforce, connects many systems” model.
Native Apps
A “native app”, like Breadwinner for QuickBooks, is installed into Salesforce from the AppExchange. It includes Salesforce components (like objects, tabs, pages, and workflow) that come pre-built. Upon installation, you might find that everything is already built and mapped and that minimal effort is required to configure everything.
Because QuickBooks has a fairly rigid structure, an invoice will always have the same fields, and the line items below that invoice will always have the same fields. A native app can take advantage of QuickBooks’s rigid structure and replicate QuickBooks data back into Salesforce.
“DBSync”, “QuickBooks Connect”, and “Commercient SYNC” will replicate over, at a minimum, the invoices from QuickBooks into Salesforce (though not necessarily Credit Memos, Sales Receipts, Refund Receipts, Bills, Purchase Orders, Payments, and/or Line Items).
Because a native app lives inside of Salesforce, it can also provide more configuration within Salesforce, and often tighter data mapping than is possible with an API-only application. This comes at a slight cost, in that Native Apps will only connect just two things, in this case, Salesforce and QuickBooks.
This deeper connection means that, for some apps, they will guarantee the accuracy and completeness of your data inside of Salesforce. These are two important concepts. Completeness means that all of your QuickBooks invoices have been replicated back to Salesforce. And accuracy means that the numbers are all correct, or at least were at the time of the last sync (for most native apps, within the hour).
While native apps might replicate the QuickBooks invoice over into Salesforce in a similar manner, many other things will be markedly different. The user interface and onboarding experience can be radically different. Support levels will vary. And not all will guarantee that your QuickBooks invoice data will be replicated over to Salesforce perfectly. Some native apps might require you to use opportunity products, while others might require you to use quotes.
So which should you choose?
- Choose a native app if your main goal is a reliable, low-maintenance sync between QuickBooks and Salesforce, with finance data visible on the records your team already uses.
- Choose an API-only / iPaaS tool if you’re wiring QuickBooks into many systems at once (email, project tools, data warehouse) and want one place to orchestrate all of them.
- Choose a custom build only if your requirements are genuinely unusual and you have engineering capacity to own it long-term.
Decided a native app is the right fit? Here’s how to integrate QuickBooks with Salesforce step by step.
Frequently asked questions
What’s the difference between an API app and a native app for QuickBooks?
An API-only app connects to Salesforce from the outside and moves data in the background without installing Salesforce components. A native app is installed inside Salesforce from the AppExchange and includes pre-built objects, pages, and mappings, giving tighter integration and a UI your team can see.
Is a native app or an API app better for QuickBooks and Salesforce?
Neither is universally better — it depends on scope. A native app is usually simpler and more reliable when you only need QuickBooks and Salesforce connected. An API-only or iPaaS tool is more flexible when you’re integrating QuickBooks with many systems at once.
Is Breadwinner for QuickBooks a native app?
Yes. Breadwinner for QuickBooks is a native Salesforce app installed from the AppExchange, with pre-built objects and field mappings, so QuickBooks Online data appears on the Salesforce records your team already uses.
You can also read more about Salesforce and QuickBooks integration alternatives to Breadwinner for QuickBooks.
To learn more about how Breadwinner for QuickBooks works in Salesforce, book a personalized demo with our friendly team.