JUHENZAContact

API, ERP & CRM integration services.Records you can reconcile.

Our API and ERP integration services connect ERP, CRM, inventory and business applications through agreed data contracts. We define authoritative records, identifier mappings, retry rules and reconciliation reports so failed or duplicate updates can be found and resolved. Technical consulting starts with the systems you already operate.

Discuss your system integration

From your workflow to a working system

  1. 1Your systems
  2. 2APIs & rules
  3. 3Shared workflow

Where this fitsFor teams dealing with duplicate data entry, disconnected applications or a technology decision that needs a practical plan.

The right scope.
Built around your needs.

Start with the problem that matters. Combine the capabilities your project needs, with boundaries agreed before the build.

Technology consulting

Assess requirements and trade-offs, with a practical roadmap shaped by the existing environment and team.

APIs & system integration

Connect applications through documented interfaces, with clear data ownership and error handling.

Workflow & data mapping

Define how information moves, where validation belongs and what should happen when a dependency fails.

Handover & training

Documentation, technical support and training that help the people responsible for a system operate it.

Connected systems. Clear ownership.

A reference integration flow. Mapping data is only part of the work; failures and conflicting updates need a deliberate resolution path.

REFERENCE ARCHITECTUREChoose a layer to inspect its role.

Source: its responsibility

Read approved records from the system that owns each entity and field.

What to review

Confirm API access, identifiers, rate limits, change events and source-of-truth rules.

Illustrative planning model. Your architecture and deliverables are agreed during scoping.

See where
it could take you.

Illustrative applications to help shape your brief. These are possible project scopes, not customer case studies.
The starting point

Sales and operations teams re-enter the same customer and order information.

The approach

Agree the source of truth, map fields and connect the systems with validation, retries and exception visibility.

What the work can produce

An integration workflow with field mappings, failure handling and operational documentation.

Start where
your project is.

The first step depends on what is already known. These starting points help define an engagement; scope, price and timing are agreed separately.

Explore an uncertain idea

The problem is clear, but the approach is not.

  1. 1Question
  2. 2Prototype
  3. 3Decision

What you take forward

A bounded experiment, findings and a recommendation on what to validate next.

A prototype is not a production-ready service.

Deliver a defined scope

You know the workflow and can agree acceptance checks.

  1. 1Scope
  2. 2Build & review
  3. 3Handover

What you take forward

Agreed deliverables, verification evidence and operating instructions for the scoped release.

Changes to scope need an explicit decision on cost and timing.

Improve an existing system

A live system needs focused changes or ongoing care.

  1. 1Review
  2. 2Prioritize
  3. 3Release & observe

What you take forward

A prioritized backlog, reviewed changes and an agreed maintenance or support boundary.

Coverage, response targets and access are agreed per engagement.

How project pricing works

A clear path.
Through the work.

Scope and deliverables are agreed for each project. These stages guide the conversation.
  1. 1

    Understand the whole flow

    Identify stakeholders, applications, data owners and the points where work gets stuck.

  2. 2

    Connect with clear contracts

    Define mappings, interfaces and failure behavior before implementing and validating the integration.

  3. 3

    Transfer the knowledge

    Document decisions and operating tasks so the team can manage the connected workflow.

Connect through explicit contracts

Technology is a scoping decision. These are relevant tools and building blocks to discuss against your existing systems, operating constraints and maintenance needs.

Interfaces

APIsWebhooksFile exchange

Choose an interface after reviewing the systems’ supported contracts, rate limits and access methods.

Processing

Node.jsTypeScriptValidation

Define entity identifiers, mappings and validation rules that preserve source-of-truth ownership.

Operations

QueuesRetry rulesReconciliation

Choose delivery and exception-handling patterns based on update timing and the consequences of partial failure.

Meet the founder and review the engineering background

The ecosystem.
Behind the experience.

Interfaces, application logic, data and operations. The building blocks work together around your project.

Frontend Development

  • React
  • Angular
  • JavaScript
  • HTML5
  • CSS3

Backend Development

  • Node.js
  • Express.js
  • Laravel
  • PHP

Database

  • MySQL
  • PostgreSQL
  • MongoDB
  • Firebase

Cloud & DevOps

  • Azure
  • AWS
  • Google Cloud
  • Docker
  • Jenkins

What should be checked
before handover.

Turn quality expectations into reviewable evidence. The exact checks and responsibilities belong in the project scope.

  1. Correct mapping

    Compare representative records and edge cases, including units, missing fields and changed identifiers.

  2. Safe recovery

    Test duplicate events, partial writes and unavailable destinations against agreed retry behavior.

  3. Visible exceptions

    Verify that failed or inconsistent records can be traced, assigned and reconciled by operations teams.

Before
we begin.

Practical answers to help turn your idea into a scope everyone understands.

Should we use an off-the-shelf ERP or build custom software?

Start by testing an existing ERP against one complete workflow: roles, approvals, data imports, exceptions and reporting. An integration or extension may close the gap. Assess a custom build when essential operating rules cannot be supported maintainably, and include migration, upgrades, training and ongoing support in the decision. Product selection follows discovery with your team.

Can you connect software we already use?

That depends on each system’s API, permissions and export options. Discovery checks those capabilities before committing to an integration approach.

Can we start with consulting only?

Yes. A scoped review or roadmap can be a standalone engagement, with implementation considered after the findings are understood.

Who owns the data between systems?

The integration design should explicitly identify the authoritative source for each record, access rules and how conflicts are resolved. These decisions are agreed with your team.

Open code. Lasting value.

Built to be understood,
adapted and improved.

Our own products are intended to be open source. We also provide custom development, managed hosting and servers, support and training. Custom software we build for clients stays private unless they explicitly agree to an open-source release.

Repositories and licences for JUHENZA products will be shared as releases take shape. No specific licence has been selected yet.

Often better together.

All services

Before you scope the project.

Still have questions?
Start with the brief.

Bring the problem you want solved. We’ll shape it into a project brief you can keep — or let AI draft a first approach.

Prepare your project brief Ask AI first Book a call