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X8 CORE DEVOPS
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API AND INTEGRATION

ENGINEERING

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You use software that fits your needs, but have you been able to integrate them with each other properly? Or are you struggling with problems you cannot solve, excessive workload and inefficiently running programs?

Modern businesses do not live on a single piece of software. CRM, ERP, accounting, e-commerce, WMS, shipping, payments, marketing automation... When each one sits in a separate place, data ends up trapped in "digital islands". Then the classic picture emerges: duplicate data entry, bridging with Excel, chasing approvals over email and reports that fail to inspire confidence. As much as it is essential for systems to talk to one another, it is equally crucial that they support your workflow.

At PROJX Digital, our engineering team builds sustainable integration architectures across different systems and ensures that data flows in the right place at the right time. We treat integration not as "connecting cables", but as an engineering layer that digitalises your workflow. We transform a structure that exhausts you and creates extra workload into one that works for you and grows your business.

COMMON PROBLEMS

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ORDER/PRODUCT/CUSTOMER DATA APPEARS DIFFERENTLY ACROSS SYSTEMS. EVEN AFTER A SALE, POST-SALE COMMUNICATION CANNOT BE MANAGED CORRECTLY BECAUSE THE DATA IS INACCURATE. (NO SINGLE SOURCE OF TRUTH)

REPORTS ARE DELAYED; FINANCE, INVENTORY AND SALES DECISIONS ARRIVE "AFTER THE FACT", CAUSING BOTH UNNECESSARY WORKLOAD AND A LOSS OF CUSTOMER TRUST

MANUAL COPY-AND-PASTE PROCESSES GENERATE ERRORS AND ALSO MAKE THOSE ERRORS HARDER TO FIND

OFF-THE-SHELF PLUG-INS FALL SHORT ON COMPLEX BUSINESS RULES

WHEN AN INTEGRATION BREAKS, NO ONE NOTICES; THE ISSUE IS ONLY DISCOVERED THROUGH A CUSTOMER COMPLAINT

IMPACT

OPERATIONAL SPEED DROPS
ERROR COSTS RISE

TEAMS USE "WORKAROUNDS"
INSTEAD OF "SYSTEMS".

AS SCALE GROWS
PROCESSES BECOME FRAGILE

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THE PROJX APPROACH

First, we clarify the data and process architecture:

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DATA

"Where is each piece of data born, and where is it consumed?" (source of truth)

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FLOW

Flow type: real-time, batch or event-driven?

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ERROR

Error handling: retry, queue, idempotency (preventing duplicate transactions)

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OBSERVABILITY

Observability: logs, metrics, alerts, dashboards

Integration architecture: not just APIs, but system design

Protocols and patterns we support

The aim: to make systems talk to each other "without overloading" them and to keep them from breaking as they scale.

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ETL / data synchronisation
(scheduled/batch flows)
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API Gateway (rate limiting, key management,
versioning)
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REST / SOAP /
GRAPHQL
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Message queue /
event bus (asynchronous architecture)
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Webhooks
(event-based triggering)

OUR AREAS OF EXPERTISE

SALESFORCE
INTEGRATION

ERP-Salesforce sync: account balance, risk limit, order/invoice data (based on access and business rules)

  • Lead flows: web forms, campaigns, CRM pipeline automation
  • Two-way update rules: field-level ownership, conflict management, deduplication
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SAP INTEGRATION
DOC (RFC AND BEYOND)

On enterprise backbones such as SAP, integration success comes from "correct modelling". This way, you do not encounter surprises during any campaign period or on a standard business day; your planning always runs as intended.

  • E-commerce ↔ SAP: order, stock, price and customer flows (based on MM/SD scenarios)
  • Third-party systems: secure bridges to WMS/logistics/HR software
  • B2B portal middleware: allowing dealers to view price-stock-order status securely
CUSTOM API DEVELOPMENT
CUSTOM API DEVELOPMENT

Where off-the-shelf packages fall short, we develop APIs tailored to your business. This way we both keep your costs at a reasonable level and meet your requirements. When your load approaches a point this solution cannot carry, we activate secure migration scenarios.

  • OpenAPI/Swagger documentation
  • Versioning strategy (v1/v2 transitions, backward compatibility)
  • Rate limit & throttle (load control)
  • Authentication: OAuth2, JWT, and mTLS where required
  • Authorisation: role/organisation-based access (RBAC/ABAC depending on need)
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POS / PAYMENT AND DEVICE
INTEGRATIONS (OPTIONAL BUT CRITICAL)

With PROJX's POS integration capabilities, we can build scenarios that connect payment flows to the ERP/CRM/e-commerce chain (including PAVO, Ingenico and Moka compatibility).

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DELIVERABLES
WHAT YOU GET AT THE END OF THE PROJECT

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INTEGRATION

Integration architecture and data dictionary (mapping document)

API

API documentation (OpenAPI/Swagger)

SECURITY

Security and access policies (according to scope)

MONITORING

Monitoring/alert dashboards (optional)

ROLLBACK

Go-live plan + rollback scenario

TRAINING

Short operations document + training

COMPLIANCE APPROACH FOR SECURITY

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INTEGRATION ARCHITECTURE
AND DATA DICTIONARY

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API DOCUMENTATION
(OPENAPI/SWAGGER)

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SECURITY AND ACCESS
POLICIES

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GO-LIVE PLAN
ROLLBACK SCENARIO

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SHORT OPERATIONS
DOCUMENT TRAINING

Realtime Batch Event Driven

QUESTION REALTIME BATCH EVENT-DRIVEN
Does the user need to see the result on screen instantly? ✘ ⚠ (case dependent)
Is there traffic fluctuation / campaign load? ⚠
Should systems run independently of each other? ⚠
Is data latency tolerable? (usually)
Are there legacy system constraints? ⚠
Is there a multi-step workflow? ⚠ ✘
In most enterprise setups it is rarely "one-size-fits-all": critical screens run realtime,
heavy syncs run batch, and process flows progress as an event-driven hybrid.

OUR INTEGRATION PROCESS
design + control + live monitoring

1
DISCOVERY AND MAPPING (Data Mapping)
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· Field mapping, transformation rules, validations
· "Single source of truth" and ownership rules (master data)
2
ARCHITECTURAL DESIGN
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· Synchronous or asynchronous?
· Queueing, retry, dead-letter, idempotency
· SLA/SLO targets (according to scope)
3
DEVELOPMENT AND TESTING
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· Sandbox/staging environments
· Test data sets, end-to-end scenario validation
· Performance and load approach (as needed)
4
GO-LIVE
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· Gradual rollout (feature flag / phased rollout)
· Rollback plan
· Release notes and change management
5
OBSERVABILITY (Observability)
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· Logging, metrics, alerts
· Flow health dashboards
· Disruption/error rate monitoring and improvement backlog

With software developed specifically for your business
accelerate your operations and strengthen your sales processes.

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GET IN TOUCH WITH US

FREQUENTLY ASKED QUESTIONS

In a properly designed architecture, integration balances the load rather than "exhausting" the systems. Asynchronous flows in particular, together with queueing and rate limiting, increase stability during sudden load spikes. The impact is evaluated alongside the capacity of your existing systems and the chosen architecture. Integrations do not render systems non-functional; poorly designed integrations are what create that load. Our consultancy steps in precisely at this point to determine which new systems suit you and how those systems should "talk" to each other.

Data security is one of the most critical items that can cause lasting trust loss and directly affect your operations. Authentication, authorisation, encrypted communication, log/audit and access policies are addressed together. In addition, secure key management and environment separation (dev/stage/prod) are among our core standards.

In most scenarios, yes. Database access, file transfer, web service or middleware-based integration options are evaluated. Our goal is "the highest sustainability with the least intervention".

Where data is disconnected, growth becomes expensive. With API and integration engineering, we unite processes from sales to finance, from stock to shipping in a single picture and move your business towards an "integrated" structure. Lack of communication between these systems can be the cause of countless adverse scenarios, from a minor disruption to a massive crisis that brings the entire operation down. With the integrated structure built by our experienced team, you will experience a seamless flow.

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Custom Software Development | Web, Mobile, Integration

Custom software development: web applications, SaaS, mobile apps, CRM/ERP, integrations and API engineering. From analysis to go-live; delivery focused on security, testing and maintenance.

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Corporate Website Design

Your corporate website is not just an 'elegant showcase'; it is the most critical digital touchpoint where brand perception, trust and sales take shape, but when it is not fast, clear and SEO-friendly, the traffic it draws disappears without creating value. With Corporate Web Design, which combines design, software, content and technical SEO, you can transform your site from merely visible into a digital hub that produces conversions.

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E-Commerce Software / Packages

Launching an e-commerce site is not just about opening the store door; it is about building a system where stock, order, shipping and accounting flows run flawlessly and produce conversion. Otherwise, even if traffic grows, the operational load increases and profitability drops. With the integrated structure of E-Commerce Software/Packages, you can unify all your business processes including ERP into a single flow, creating a more controlled, scalable and sustainable commerce infrastructure.

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B2B - B2C - C2C Software

E-commerce is not a single model; B2B, B2C and C2C each require different sales flows, operational models and user behaviors, and choosing the wrong model grows operations without scaling profitability. With the flexible architecture of B2B, B2C and C2C Software Ecosystems, you can build automations, integrated processes and scalable infrastructures tailored to your business model, making growth sustainable.

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Custom CRM Software

CRM isn't just a tool for storing customer records; it's an operating system that lets sales, operations and finance speak the same language — yet as businesses grow, off-the-shelf solutions create rigidity, integration limits and hidden operational overhead. With the architecture offered by Custom CRM Software Development, you can build systems tailored to your sales funnel, approval flows and data model, making your processes more integrated, scalable and controllable.

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Web-Based Application Development

The office is no longer tied to a single location; while teams work in the field, remotely and across different devices, desktop software quickly falls short in installation, update and access processes. With Web-Based Application Development's browser-based, multi-device, instantly-updated structure, you can make your business processes more flexible, scalable and sustainable.

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API and Integration Engineering

In many businesses, CRM, ERP, e-commerce and payment systems operate in isolation; this breaks data into 'digital islands', leading to duplicate data entry and unreliable reports. With the architectural foundation provided by API and Integration Engineering, you can make all your systems talk to each other and build a more efficient, automated workflow that channels data to the right place at the right time.

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Mobile App Development

A mobile app should create real value for your business. A well-designed app drives user acquisition, sales growth and operational efficiency. At PROJX Digital, we use Native, Cross-Platform and PWA solutions to do more than just publish your app — we turn it into a measurable, sustainable growth tool. Keeping the app on the user's device is as central to our strategy as getting it downloaded in the first place.

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Custom ERP Software Development

Standard software can fall short for growing businesses. At PROJX Digital, we build custom ERP solutions for your company, simplifying your processes and helping your teams work efficiently. With role-based structure, sustainable integrations and a needs-driven architecture, we eliminate complexity and deliver a digital system fully aligned with your workflows. When needed, we strengthen decision-making with AI-powered analytics and forecasting modules to support your business growth.

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