Professional technology environment representing API & System Integrations
04 · Software Development

API & System Integrations

Connect essential systems so information moves accurately and securely.

Registered activity62012 — Business and domestic software development
Service categorySoftware Development
Indicative duration3–8 weeks
Starting pricefrom £1,900
Client typesBusiness, organisations & private clients
Delivery areaUnited Kingdom & European Union

Make existing systems exchange the right information without a person acting as the integration layer.

API and system integration work connects applications that currently rely on manual export, re-keying or inconsistent copies of the same record. The service defines what information moves, which system owns it, when a transfer should happen, how it is validated and what operators see when either side is unavailable or rejects the request.

A dependable integration is more than a successful test call. It needs an agreed data contract, permissions, transformation rules, duplicate protection, monitoring, reconciliation and a recovery route. The engagement therefore includes operational behaviour as well as technical connectivity, so the client understands how the connection will be supported after release.

When this service is usually considered.

The examples below help frame suitability. The actual requirement, risks and intended outcome are confirmed during the initial review.

  1. 01

    Teams export and re-import data because two essential platforms do not exchange records.

  2. 02

    Customer, product, order or status information differs depending on which system is viewed.

  3. 03

    A new portal or workflow cannot launch until it can use information held elsewhere.

  4. 04

    An existing integration fails without enough context for staff to identify or recover affected records.

  5. 05

    Management reporting requires a repeated manual consolidation of several systems.

What the engagement may include.

Every item is selected and bounded in the written proposal. Inclusion here describes capability, not an automatic promise that all activities fit the starting price.

01

System and ownership assessment

Identification of source, destination, master record, update authority, access route and operational owner for every data flow in scope.

02

Data contract and mapping

Written field mapping, formats, required values, validation, transformations and treatment of missing or unexpected information.

03

Authentication and access configuration

Implementation of the approved supplier access method with secrets handled through an appropriate route rather than public forms or code.

04

Exchange and synchronisation logic

Real-time, queued or scheduled movement designed around volume, order, duplication and consistency requirements.

05

Failure handling and reconciliation

Retries, alerts, exception records and comparison routines that show when two sides do not agree.

06

Technical and operating documentation

Interface behaviour, dependencies, monitoring, recovery actions and test evidence for the delivered connection.

Useful artefacts, decisions and working results.

The output is designed to support operation, delivery or a clearly defined next decision—not to create presentation volume without practical value.

01

System and data-flow assessment

A current-state map of participating systems, record ownership, access limitations and operational dependencies.

02

Integration design and field mapping

The agreed data contract, field mapping, security approach and failure behaviour for each connection.

03

API connection or synchronisation workflow

The implemented API connection, event flow or synchronisation process included in the written scope.

04

Testing records and technical documentation

Scenario tests, monitoring and recovery notes, plus technical documentation for future maintenance.

Data moves through a controlled boundary.

Mappings, validation and recovery sit between source and destination so failure is visible and manageable.

01

Source systems

Events
02

Validate & map

Rules
03

Resilient exchange

Recovery
04

Destination records

Confirmed state

Common use cases.

These examples show how the service can be applied. They are illustrative and do not represent claims of completed client engagements.

Use case 01

CRM and service operations

Keep customer, opportunity, case or activity information aligned between relationship and delivery platforms.

Use case 02

Orders, stock and fulfilment

Move validated order and inventory events between sales, warehouse, delivery or finance services.

Use case 03

Identity and account provisioning

Create or update authorised accounts and access records after agreed business events.

Use case 04

Reporting and data consolidation

Collect approved operational information into a reporting store without repeated manual export work.

How NORYVIA approaches Integrations.

The method is adapted to the service rather than repeating one generic project formula across every requirement.

01

Name the system of record

Every important field needs a defined owner so simultaneous updates do not create unresolved conflict.

02

Treat failure as normal

Networks, suppliers and data can fail. Retry, reconciliation and human recovery are part of the design rather than an afterthought.

03

Transfer only what is needed

The interface is limited to the records and fields required for the agreed purpose, reducing privacy and maintenance exposure.

04

Leave the boundary documented

Mappings, credentials ownership, operating alerts and supplier dependencies are recorded for future change.

Six stages with visible decisions.

Activities can overlap where appropriate, but each stage has a clear purpose and produces evidence for the next one.

01

Interface discovery

Confirm systems, owners, available APIs, permissions, volumes and the business event behind each transfer.

02

Contract design

Agree fields, formats, validation, timing, duplicate handling and source-of-truth rules.

03

Failure and security design

Define authentication, secret handling, retry, alerting, reconciliation and recovery responsibilities.

04

Implementation

Build the approved connection in a controlled environment using representative test conditions.

05

End-to-end verification

Test success, invalid input, duplicate events, interruption, recovery and relevant volume scenarios.

06

Release and operate

Move the connection into use, monitor initial behaviour and provide technical and operating notes.

The disciplines brought into the work.

The precise technical or advisory depth depends on the accepted scope, available evidence and client environment.

01

Interfaces

  • REST and webhook integrations
  • Scheduled and queued exchange
  • File-based transfer where justified
  • Authentication and token handling
  • Rate-limit aware processing
02

Data control

  • Field mapping and transformation
  • Validation and schema checks
  • Idempotency and duplicate protection
  • Reference and identifier matching
  • Reconciliation reporting
03

Operations

  • Retry and dead-letter handling
  • Structured integration logs
  • Failure alerts with context
  • Health and dependency monitoring
  • Recovery and maintenance documentation

Information and access needed from the client.

Good delivery depends on timely, authorised access to relevant people and evidence. Missing inputs are surfaced as assumptions or constraints rather than quietly filled with guesses.

  1. 01

    The business event and outcome each connection must support.

  2. 02

    System owners and authorised access to relevant API or integration documentation.

  3. 03

    Representative fields, records, volumes and timing expectations.

  4. 04

    Known data-quality issues and source-of-truth decisions.

  5. 05

    Contacts responsible for operational response when a supplier or transfer fails.

A defined starting point—not a blank cheque.

The displayed price is an indicative starting guide for a bounded initial engagement. Before work begins, a written proposal confirms the selected activities, deliverables, assumptions, client responsibilities, exclusions, timetable, payment schedule and any third-party costs.

Indicative engagement shapes

Single documented connectionTypically 3–5 weeks
Two-way synchronisationTypically 5–8 weeks
Several connected systemsDelivered as a prioritised integration programme

Factors that may change scope, price or duration

  1. 01

    Number of systems, interfaces, records and directions of data movement.

  2. 02

    Quality and stability of supplier documentation and test environments.

  3. 03

    Transformation, matching, reconciliation and historical data requirements.

  4. 04

    Authentication, privacy, volume and availability expectations.

  5. 05

    Monitoring, alerting, support and supplier-change responsibilities.

What is not automatically included.

Boundaries protect both parties from assumptions. A separate requirement can still be assessed and included where it is suitable and confirmed in writing.

01

Unavailable supplier access

Implementation depends on the client and third-party provider granting suitable authorised access and maintaining the required interface.

02

Unreviewed historical migration

Bulk movement or repair of historical records is separate from ongoing integration unless it is expressly included.

03

Guaranteed uninterrupted exchange

No external connection can be represented as failure-proof. The design focuses on detection, controlled recovery and clear responsibility.

Questions about Integrations.

Project-specific answers depend on the current environment, intended outcome and evidence available during review.

Only where the platform provides a lawful and technically suitable route. API quality, permissions, limits and commercial terms are reviewed before the connection is accepted into scope.

Not automatically. Real-time, queued and scheduled exchange have different cost and reliability characteristics. The appropriate model depends on the business event and tolerance for delay.

The design can use stable identifiers, idempotency keys, matching rules and reconciliation reports. The exact approach depends on how each system identifies and owns records.

The handover states monitoring, recovery actions and dependencies. Ongoing investigation or supplier-change support can be arranged separately in writing.

Start a conversation about Integrations.

Use the structured questionnaire to explain the current situation. NORYVIA will review suitability and respond with questions or a proposed next step.