Programmable automation with custom code

Programmable automation is the use of custom code inside HubSpot's workflows — custom-code actions and serverless functions — to handle logic the standard no-code tools can't, such as complex calculations, external API calls and multi-step data transformations.

When your process needs logic HubSpot's no-code actions don't offer — calling an external API, complex conditional logic, data transformations, or calculations across records. We use standard workflows wherever they suffice and add code only where it's needed.

They run JavaScript or Python inside a workflow to call external APIs, enrich or transform data, perform calculations, format properties, and make decisions — then pass the results back into the workflow to drive the next step.

Custom-code workflow actions and programmable automation are part of Operations Hub Professional and above. We confirm your tier covers what you need before building.

Yes — we write clean, documented code with error handling and logging, so it's transparent and maintainable. We can hand it over with documentation or maintain it for you ongoing.