Migrating Zealous’ Customised Retail ERP From Odoo 16 to 18 Enterprise

Project at a glance

Clothing, footwear and accessories retail: the Odoo 16 Enterprise implementation migrated to Odoo 18 with custom modules upgraded, then extended with POS cashier workflows, barcode scanning and ZPL price labels, payment and COD modules, a POS sales API, manufacturing costing and WhatsApp customer communication.

Client

Zealous

Industry

Retail & eCommerce

Platform

Odoo 18 Enterprise

Duration

4-6 months

Location

UAE

Services

Odoo Migration, Odoo Development, Odoo Customization, Odoo Integration, Odoo Enterprise, Odoo Sales & CRM, Odoo Supply Chain

The challenge

Migrate a customised Odoo 16 Enterprise system to Odoo 18 without losing business workflows or interrupting daily store operations: and improve POS, label printing, payments, manufacturing costing, invoicing and customer communication at the same time.

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The solution

Migrated all custom modules to Odoo 18 Enterprise, upgraded payment and website-validation modules, enhanced POS workflows (barcode scanner, quantity management, discount validation, cashier operations), customised barcode and ZPL label printing, built an API for daily POS sales synchronisation, improved manufacturing cost calculation, redesigned customer invoices and integrated WhatsApp, with staging deployments and production support throughout.

How we built it

• Migrated custom modules from Odoo 16 Enterprise to Odoo 18 Enterprise.
• Upgraded payment modules and website validation modules.
• Enhanced POS workflows and cashier operations.
• Implemented barcode scanning and quantity management.
• Customized barcode and ZPL label printing.
• Developed APIs for daily POS sales synchronization.
• Improved manufacturing cost calculations and reporting.
• Enhanced customer invoice layouts.
• Implemented WhatsApp integration for customer communication.
• Added POS discount validations and payment improvements.
• Performed staging deployments, testing, bug fixing, and production support.

Integrations

• WhatsApp
• Barcode scanners
• ZPL label printers
• Payment gateway modules
• REST APIs

How these are built and where they fail: WhatsApp customer messaging.

Custom development

What changed

• Odoo 16 → 18 Enterprise migration with all critical customisations preserved
• POS performance and cashier productivity improved
• Barcode and label printing accuracy improved
• Daily POS sales integrated through custom APIs
• Manufacturing cost visibility improved
• Customer communication through WhatsApp inside the ERP

What made this project different

• End-to-end migration of a heavily customized Odoo Enterprise implementation.
• Extensive retail-focused POS enhancements tailored to business operations.
• Advanced barcode and ZPL label printing customizations.
• Integration of customer communication directly within ERP using WhatsApp.
• Combination of migration, modernization, API development, and operational improvements delivered within a single engagement.

Technology

• Odoo 18 Enterprise
• Python
• PostgreSQL
• OOWL

Team

The expertise on the project, not personal profiles.

• Odoo Solution Architect
• Odoo Technical Developer
• Functional Consultant
• QA Engineer
• Project Manager

Questions