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Integrations and custom development

HubSpot Development & Integrations

We connect HubSpot to your ERP, phone system, invoicing, and other systems so data flows on its own and your team stops retyping it by hand. And where HubSpot’s standard features fall short, we build custom apps, scripts, and interface extensions tailored to your processes.

HubSpot Partner since 2018

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Why integration is worth solving

Manual re-entry, duplicate records, and systems that don’t talk to each other

HubSpot is rarely the only system in a company. Alongside it there’s an ERP, invoicing, a phone system, or an online store, and each one holds a piece of the truth about the customer. Until these systems talk to each other, people move the data. By hand, after hours, with errors that only surface once they’ve reached the customer.

Data gets retyped by hand

A rep closes a deal in HubSpot, then retypes the order into the ERP. The accountant hunts for which customer a payment belongs to. Every re-entry costs extra time and creates a chance for an error that then propagates through both systems.

Duplicate records, duplicate truths

The same customer exists in the CRM and the ERP, but each record says something different: a different address, a different contact, a different status. The team stops trusting the data and decides based on whoever has the ‘right’ system open at the time.

Integration as a scary word

Many companies have already been burned by one: a script from a former vendor nobody knows how to edit, or a project that dragged on and blew the budget. The result is a reluctance to try connecting systems again, even though manual transfers are provably costing the company time and money.

Standard features hit a ceiling

Sometimes it’s not about connecting systems, but about a process HubSpot doesn’t natively support: a specific pricing calculation, an approval flow, or a view of data your rep needs directly inside the CRM. The team ends up working around the tool with spreadsheets instead of the system serving them.

The underlying problem

The systems in your company grew separately, and nobody designed them as a whole. Manual transfers between them aren’t a process, they’re a stopgap: they work as long as nobody makes a mistake and nobody leaves. Integration turns them into one continuous data flow that doesn’t depend on individual discipline.

A SCENARIO YOU DON’T WANT TO LIVE THROUGH

A company gets an ERP integration ‘quickly scripted together.’ It runs on a server one person knows about, with no monitoring and no documentation.

After an API update, some records quietly start falling through the cracks. Nobody notices until, a month later, the accountant discovers dozens of orders with no matching record in the ERP.

What follows is manual tracing, data cleanup, and eventually rebuilding the whole integration from scratch. This time with the documentation the project should have had from the start.

None of this is inevitable. Integration complexity can be assessed upfront, and the project managed so silent failures never happen.

WHAT WE OFFER

From an off-the-shelf connector to fully custom development

Make.com and similar platforms, no custom code

The simplest connections don’t need a developer. For ‘when A happens, do B’ scenarios, we build automations in Make.com, a platform with Czech roots that your team can learn to edit on its own after training.

We design and configure the scenario, map the fields, test edge cases, and train your team to edit the scenario without us.

  • HubSpot ↔ Google Sheets and internal records
  • Slack or email notifications on sales events
  • Connections to task tools and simple forms

Make.com and similar platforms, no custom code

The simplest connections don’t need a developer. For ‘when A happens, do B’ scenarios, we build automations in Make.com, a platform with Czech roots that your team can learn to edit on its own after training.

We design and configure the scenario, map the fields, test edge cases, and train your team to edit the scenario without us.

  • HubSpot ↔ Google Sheets and internal records
  • Slack or email notifications on sales events
  • Connections to task tools and simple forms
How we run the project

Scope first, then discovery, only then development

Every integration project starts with a short mapping call: which systems you’re connecting, what data, and in which direction. Based on complexity, you then get a rough scope and three possible paths. For smaller connections, we can move straight to building. For more complex ones, we recommend a quick discovery to validate key assumptions. And for large projects, a thorough discovery that designs the entire solution in detail. Discovery is a paid phase: it’s real analytical work, and its output is a specification you can use even independently of us. Development and integration are one of the disciplines within our implementation practice.

We don’t estimate an integration from a desk. We verify the API and the data first, then commit to scope and price.

Four steps of an integration project

Mapping and classification

A short conversation about your systems, data, and volumes. We classify the project by complexity, from a no-code scenario to multi-system orchestration, and tell you which path to a fixed price makes sense.

Discovery

For more complex projects, we verify the API documentation, the data model, and edge cases. The output is an integration specification and a fixed price for a clearly defined scope. No assumptions that only surface once we’re building.

Development and testing

We build the integration to the approved specification, including error and exception handling. Before it touches live data, we verify everything against a test sample, so you don’t have to guess about transfer quality.

Handover and operation

Deployment with monitoring and error alerts, documentation, and training. We agree on who watches the integration long-term: your team using the documentation, or us as part of ongoing portal management.

Most common connections

HubSpot connected to whatever your business runs on

Integration isn’t the goal in itself. The goal is data flowing between systems on its own, with no manual re-entry from the first inquiry to the invoice, with sales, marketing, and accounting all working from the same truth about the customer.

HubSpot and ERP

Orders, products, and a customer’s billing status move between CRM and ERP on their own. Your rep sees what’s being invoiced without leaving HubSpot. Typically Helios, Pohoda, Money, or Microsoft Dynamics.

HubSpot and phone systems

Calls from your PBX, Daktela for example, log to contacts automatically. Sales and customer service see the full communication history in one place, including recordings and call outcomes.

HubSpot, documents, and payments

A quote, an e-signature through PandaDoc or DocuSign, and a payment through Stripe all happen from a single deal record. Document and payment status write back to the CRM.

HubSpot and e-commerce

Orders and customer data from your online store, Shopify or WooCommerce for example, give marketing segmentation data and customer service context. No manual exports.

When a connector is enough, and when it’s a custom project

Custom development and integration make sense if:

  • you’re connecting HubSpot to an ERP or internal system with no off-the-shelf connector

  • the data you’re transferring has its own logic: complex pricing, approvals, links to orders

  • you need permanent syncing with monitoring and error tracking, not a one-time transfer

  • you’re connecting three or more systems into one governed data flow

  • you’re hitting the limits of HubSpot’s standard features and need a custom app, script, or interface extension

You don’t need a custom project if:

  • a proven connector for your system already exists in the HubSpot Marketplace and its standard capabilities are enough - we’ll deploy it and configure it correctly

  • it’s a simple connection like a notification or a spreadsheet entry - a Make.com scenario will handle it

  • you need a one-time data transfer from an old CRM - that’s migration, not integration

  • you’re just getting started with HubSpot and working through basic setup - start with HubSpot onboarding; integration can follow from there

Three questions that will define the integration’s scope the fastest:

1

How many systems need to connect, and in which direction should the data flow?

2

Does the system have a documented API, or does a third party hold it?

3

How often does the data change, and what happens if the transfer stops for a day?

Frequently asked questions about development and integrations

It depends on complexity. A no-code Make.com scenario is done within days, deploying a standard connector within weeks. Custom integrations typically take a few weeks to a couple of months, multi-system projects longer.

You’ll get an exact timeline after mapping, or after the discovery phase for more complex projects.

The price depends on complexity: whether an off-the-shelf connector exists, how good the API is, and how many systems you’re connecting. That’s why we don’t quote it from a desk. After a short mapping call, you get a rough scope, and after discovery, a fixed price for a clearly defined scope.

Discovery is real analytical work: we verify the API documentation, the data model, volumes, and the edge cases that determine how much effort it takes. The output is an integration specification you can build from, even if you ultimately choose a different vendor.

Without discovery, a fixed price would just be a bet that one side ends up losing.

We can still handle it, it just needs a different approach. We explore the system’s interface first, coordinate access with its vendor, and build in extra room for testing. Discovery delivers the most value on exactly these projects: it turns an unknown risk into a described scope.

We hand over every integration with monitoring, error alerts, and documentation, so your own team can run it long-term too. If you don’t have the internal capacity, we take over ongoing oversight as part of continuous portal management.

Development on top of HubSpot as a platform: custom apps, coded workflow actions, scripts for calculations and approvals, and UI extensions, meaning custom cards and components directly inside the HubSpot interface. It fits when standard features aren’t enough, but leaving HubSpot would be a step backward.

We actively recommend Make.com, and for simple scenarios it’s the fastest path. Its limits show up with large data volumes, complex business logic, and connections that critical business processes depend on. On a consultation, we’ll tell you honestly which category your case falls into, even if that means a smaller project for us.

Ready to connect HubSpot to the rest of your business?

Start with a free audit: it’ll show you what state your portal is in and where manual data transfers are costing you the most time. Or skip ahead and talk with us about the specific system you want to connect.

  • HubSpot Partner since 2018
  • Experience from 60+ HubSpot implementations
  • Honest advice, even if an off-the-shelf connector would be enough for you