Decide which system owns the data
We map the records, fields and business events before building the connection. A customer, a contact and a subscription may represent different things in different apps.
Zoho API integrations
Your tools should talk. Your team shouldn’t have to translate.
Connect Zoho CRM, Billing and the tools around them. Replace a manual hand-off with a defined, tested data flow built around what your business needs to happen.
No specification needed to start. Tell us the outcome you want.
Start with the workflow
What needs to happen after “save”?
A subscription changes. A customer books. A document is signed. Your other systems need to know. We build API integrations and webhook-driven workflows so these events can move the process forward.
Zoho CRMZoho BillingZoho BookingsZoho DeskZoho Catalyst
The details that make a connection usable
More than moving a field from A to B.
These are the decisions we work through with you before and during implementation. They become part of the agreed scope, tests and documentation.
Choose when information moves
A webhook can trigger a change as an event happens; a scheduled sync may be a better fit elsewhere. We choose based on the APIs, the volume and how quickly the business needs the update.
Plan for the calls that fail
Expired credentials, rate limits, duplicate events and unavailable services are part of integration work. We agree how the connection should handle them, and how you can tell when something needs attention.
Test the complete business flow
A successful API response is only one check. We test the agreed journey through the connected systems and document the field mappings, credentials setup and operational steps for handover.
Built by DDH Systems · in production
From sign-up to support. One connected Zoho platform.
For a business serving homeowners, we built three web applications on a shared React frontend, with Zoho CRM at the centre. Subscriptions, bookings, documents and support are connected through Catalyst.
See how the platform works
3customer-facing applications
~25serverless Catalyst functions
5Zoho products in production
1CRM as the system of record
A clear way to work together
A defined project. An engineer who sees it through.
Eight years engineering business systems.
Our background spans .NET, Rails, React, databases, Azure and AWS. That matters when your Zoho project needs to work with the rest of your business, too.
Direct access to a senior engineer. English or French. Remote collaboration.
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Show us where you’re stuck
Share the apps involved and what you want to happen. We clarify the problem, check feasibility and tell you if we’re the right fit.
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Agree the scope and price
You get the proposed work, deliverables and price in writing. If the scope changes, we agree the change before doing more work.
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Build, test and hand over
We implement the agreed solution, test the real workflow and document the handover. You keep the code and documentation. Monthly on-call retainers are available if you need ongoing help.
Before you get in touch
A few things you might be wondering.
Can you connect our particular app?
Send the app names, the data that needs to move and any API documentation you have. We check the available APIs, permissions and product plans before confirming feasibility. Not every app or plan exposes the access a project needs.
Will this need Catalyst, Deluge or Zoho Flow?
That depends on the workflow. We check whether existing configuration or a standard connector can meet the requirement first. Where custom code is needed, Deluge or Catalyst can provide the missing behaviour.
How does €500/day become a project price?
The day rate is the basis for estimating custom development. Once the scope is clear, we quote the agreed work in writing. Billing setup, health checks and deliverability work have their own published packages. Zoho subscriptions and third-party fees are separate.
Can you work with our existing Zoho partner or admin?
Yes. We can take on a specific development or integration alongside your current team. We agree who owns each part and document what we change so the work can be maintained afterwards.
Start with a short brief
What needs to connect?
Tell us what you’re trying to achieve. A few sentences are enough; you don’t need a technical specification.
- Usually a reply within one working day
- An honest view of fit and next steps
- Scope and price agreed before work begins