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Custom HubSpot Development

Custom objects, apps, UI extensions and middleware where HubSpot's configuration surface does not reach — built with an explicit maintenance position.

Built where configuration cannot reach

Custom development applies where a requirement cannot be met by configuration, and where the native and packaged options have already been assessed.

Every custom component is a software asset with an ongoing maintenance profile. It is documented, monitored and version-aware.

That profile is set out before the build rather than discovered at the first API change.

Assessed alternatives
Documented maintenance
Version-aware
Book a call
SCOPE
The work covers custom objects, private apps, UI extensions, and middleware between HubSpot and other systems.
PRECONDITION
Configuration and packaged options are assessed first, and custom code is recommended only where neither meets the requirement.
HANDOVER
The client receives the source, the documentation, and a stated position on who maintains the component afterwards.

The shape of the engagement

Phases, their overlaps, and the point at which each is accepted. Durations are scoped per engagement; the sequence and the acceptance points hold.

The phases of the engagement and the points at which each is accepted5 phases across 7 weeks: Alternatives assessment, weeks 1 to 1; Specification, weeks 2 to 3; Build, weeks 3 to 5; Failure path testing, weeks 5 to 6; Deployment and handover, weeks 7 to 7. Phases overlap rather than running strictly in sequence. 3 acceptance points sit on the same axis: Alternatives recorded at week 1; Specification approved at week 3; Handover at week 7. Configuration and packaged options are assessed and rejected on the record before code is written.PHASEW1W2W3W4W5W6W7Alternatives assessmentSpecificationBuildFailure path testingDeployment and handoverAlternatives recordedSpecification approvedHandoverConfiguration and packaged options are assessed and rejected on the record before code is written.

Buy this engagement

Development is drawn against a band of hours, quoted after the specification is agreed.

Hours - Band of 10Ten hours of RevOps engineering at $250/hour. Drawn down against any work: builds, fixes, integrations or advisory.$2,500

Scope not listed here is quoted. The full catalogue carries every item.

Our work on this

Published research and engagements covering the same subject, so the approach described above can be read at length rather than taken on description.

What is delivered

Each item below is a document or an artefact the client keeps, not an activity performed.

  1. Options assessment

    A written comparison of configuration, packaged and custom approaches, with the reason the custom route was selected.

  2. The component

    The custom object, app, extension or service, built to the agreed specification.

  3. Technical documentation

    Architecture, dependencies, API versions relied upon, and the procedures for deployment and rollback.

  4. Maintenance position

    What will require attention over time, at what likely cadence, and who holds it.

What this includes

Assessment of configuration and packaged alternatives first
Custom object design and association modelling
Private app and API integration
UI extensions and custom cards
Serverless functions and middleware
Error handling and retry semantics
Deployment and rollback procedures
Technical documentation and handover

How it runs

01

Alternatives assessment

Configuration, native connectors and packaged options are evaluated and the reason each was rejected is recorded.

02

Specification

Behaviour, interfaces, and handling for invalid input and unavailable dependencies are documented and approved before code is written.

03

Build and test

Implementation with the failure paths exercised rather than assumed, in a non-production environment.

04

Deployment

Release against a documented rollback position and a stated dependency on specific API versions.

05

Handover

Documentation, source and the maintenance position transferred to a named owner.

Milestones

MilestoneAccepted when
Alternatives recordedConfiguration and packaged options assessed and rejected with reasons.
Specification approvedBehaviour, interfaces and error handling agreed.
TestedFailure paths exercised in a non-production environment.
DeployedReleased with a rollback position recorded.
HandoverSource, documentation and maintenance position transferred.

Ways of working

Development is done-for-you, with the specification agreed jointly. Where the client has an internal engineering team, the work can be conducted advisory — specification and review by us, implementation by them — which is often the better arrangement, since it keeps maintenance knowledge inside the organisation.

The engagement plan, the hour budget, the delivery spectrum and the weekly, monthly and quarterly cadence are common to every service and are set out in how we work.

Common questions

Custom Development FAQ

By assessing configuration and packaged options against the requirement first and recording the result. Where those meet the requirement they are ordinarily the lower-cost route; where they do not, the custom build is scoped with its maintenance profile stated alongside it.

The client. Source and documentation are transferred at handover, and the maintenance position states what will require attention and when.

The documentation records which API versions the component depends upon, which converts a deprecation notice into a scheduled task rather than an outage.

Yes, and where one exists it is frequently the better arrangement. We specify and review; your team implements and retains the knowledge.

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HubSpot services

Onboarding, implementation, integration, migration, administration and training, each scoped and priced before the work begins

WEEKLY PROGRAM

RevOps Office Hours

A recurring weekly RevOps operating program. Live support plus hands-on HubSpot implementation work.

$1,500/mo
Monthly Operating Program
  • 1 live Office Hours session per week
  • 4 hours of hands-on implementation work per month
  • Hours allocated against priorities agreed at the start of each period
  • Recurring monthly cadence