GPA Teknoloji

Custom Software

Integration & Customization

We connect Logo, ERP, CRM, e-transformation, warehouse, banking and e-commerce systems with reliable API and data flows.

Back to all services
Integration map between ERP, CRM, e-commerce, warehouse and reporting systems

Why is system integration the backbone of transformation?

In most organizations, the real problem is not a missing system — it is systems that do not talk to each other: accounting in one place, field sales in another, warehouse in a third. Integration work builds a reliable, traceable data flow between existing systems without replacing them.

We build integration as a continuously running layer, not a one-off data transfer: every connection is designed with retry and failure-notification logic, with controls that prevent the same record from being processed twice. We clarify up front which system is the single source of truth, and sync the others to it.

Where we move you

Today

  • Same data is keyed in by hand across systems
  • Mismatches between systems cause errors
  • Reports and screens cannot be tailored to need

After this service

  • Single-entry, automatically synced data
  • Traceable integration layer with fewer errors
  • Reports and screens customized to real need

How we work

01

API and data integrations

We turn this item into a concrete work package with owner, acceptance criteria and measurement point.

02

Report and screen customizations

We turn this item into a concrete work package with owner, acceptance criteria and measurement point.

03

Business rule and automation development

We turn this item into a concrete work package with owner, acceptance criteria and measurement point.

04

Integration monitoring dashboard

We turn this item into a concrete work package with owner, acceptance criteria and measurement point.

Integration map between ERP, CRM, e-commerce, warehouse and reporting systems

API + data flow + source of truth

We connect systems and turn data into a shared business language

Integration is not only connecting two systems. If data ownership, error handling and operational responsibility are unclear, the connection creates new problems.

Research

Why integration is the backbone of transformation

Reporting delays, duplicate entry, stock/payment mismatches and customer experience issues often come from systems producing separate truths.

Operating model

Decisions we clarify in integration design

We design data flow between ERP, CRM, e-commerce, warehouse, production, banking and reporting systems as a business process, not only technical endpoints.

Decision
What is defined?
Wrong approach
Correct output
Data ownership
Which system is source and which is consumer?
Every system keeps its own truth
Master data and ownership matrix
Synchronization
Real-time, scheduled or event-based flow
Every piece of data moves every time
Flow plan matched to business need
Error handling
Failed transfers, retry and alert rules
Errors are fixed when users notice
Logs, alerts and correction queue
Security
Authentication, authorization and data masking
API keys are shared without control
Secure connection and access policy
Reporting
Flow status, latency, record count and mismatch
Integration exists but is not measured
Operations dashboard

Roadmap

How we implement integration

We map data and process flow first, then build the technical connection. After go-live, responsibility is clear.

01

Weeks 1-2

System and data inventory

Source systems, data objects, field mapping, data quality and business rules are identified.

02

Weeks 3-4

Architecture and security design

API, webhook, ETL, file transfer, authentication and logging approach are selected.

03

Weeks 5-8

Development and testing

Integration services are built; end-to-end, error and load tests are performed.

04

Weeks 9-12

Go-live and monitoring

Alerts, reporting, error correction and version management are activated after launch.

Which KPIs measure integration success?

Manual transfersKPI
Data latencyKPI
Failed transaction ratioKPI
Reconciliation varianceKPI
API error rateKPI
Report preparation timeKPI

Integration layer by the numbers

6-10 weeks

Typical integration project timeline

Live dashboard

Integration monitoring

Frequently asked questions

Which systems do you have integration experience with?

We have delivered projects with Logo and other common ERP/CRM suites, e-transformation (e-invoice/e-waybill) infrastructure, and banking and e-commerce integrations.

Let's talk about this service

Tell us briefly what you need, and we'll scope the right approach together.

Get in touch