The GK Omni POS Customization Training Course is a comprehensive technical program designed to provide participants with the knowledge and practical skills required to understand, configure, extend, and customize GK Omni POS solutions for retail business requirements.
The course introduces the GK Omni POS environment and its role within an omnichannel retail architecture before progressing into configuration, transaction flows, user interface customization, business rules, integrations, and extension concepts. Participants learn how POS functionality can be adapted to support organization-specific requirements such as sales transactions, promotions, discounts, tenders, customer interactions, receipts, and external system integrations.
The training also covers development and customization practices, troubleshooting, deployment considerations, and maintaining customized components. Because actual GK Software implementations can differ by product version, licensed modules, APIs, and customer architecture, the technical exercises and configuration examples should be aligned with the client’s specific GK Omni POS environment.
Duration 5 Days – 35 hrs.
Objectives
- Explain the architecture and major components of a GK Omni POS environment.
- Understand how GK Omni POS supports retail and omnichannel transaction processes.
- Navigate the relevant configuration and customization components of the platform.
- Understand POS transaction flows and the relationship between business processes and system configuration.
- Configure selected POS functions according to retail business requirements.
- Customize POS screens, workflows, and user interactions where supported.
- Configure and extend transaction-related business rules.
- Customize product, pricing, promotion, discount, and tender-related behavior.
- Understand customer and loyalty-related POS customization requirements.
- Work with configuration files, parameters, services, and extension points applicable to the implementation.
- Understand integration patterns between GK Omni POS and external retail systems.
- Apply development practices for organization-specific POS extensions.
- Diagnose common configuration, customization, and integration issues.
- Manage customized components through development, testing, deployment, and maintenance.
- Apply maintainable customization practices that minimize unnecessary changes to the core platform.
Target Audience
- POS Developers
- Software Developers
- Application Developers
- Java Developers working with POS solutions
- Retail Application Developers
- POS Application Support Engineers
- Application Support Specialists
- Retail Systems Analysts
- Technical Consultants
- Solution Consultants
- System Integrators
- Business Systems Analysts with technical responsibilities
- QA and Test Engineers supporting POS applications
- Technical Leads and Solution Architects
- IT personnel responsible for GK Omni POS implementation and customization
Prerequisites
- Basic understanding of retail and Point-of-Sale operations.
- Familiarity with POS transaction concepts such as sales, returns, discounts, payments, and receipts.
- Basic knowledge of software development concepts.
- Familiarity with Java and object-oriented programming is recommended for development-oriented customization.
- Basic understanding of XML, JSON, APIs, and web services is beneficial.
- Basic knowledge of databases and SQL is helpful.
- Familiarity with application configuration and deployment concepts.
- Access to an appropriate GK Omni POS development, test, or training environment is recommended for hands-on customization activities.
Course Outline
Day 1 – GK Omni POS Architecture and Customization Foundations
Module 1: Introduction to GK Omni POS
- Overview of GK Omni POS
- Role of POS within modern retail operations
- Omnichannel retail concepts
- Core POS capabilities
- Common retail use cases
- Store and enterprise-level components
Module 2: Understanding the GK Omni POS Architecture
- High-level solution architecture
- POS client components
- Application and service layers
- Central and store-level services
- Data and configuration components
- Communication between POS and enterprise systems
- Understanding deployment environments
Module 3: POS Transaction Lifecycle
- Transaction initialization
- Operator login and session handling
- Item entry and basket creation
- Price determination
- Discounts and promotions
- Customer identification
- Tender and payment processing
- Transaction completion
- Receipt generation
- Returns, voids, and cancellations
Module 4: Customization Architecture and Concepts
- Configuration versus customization
- Standard functionality versus custom requirements
- Identifying customization points
- Extension concepts
- Configuration hierarchy
- Managing organization-specific requirements
- Principles for minimizing core-system modifications
Day 2 – POS Configuration and User Interface Customization
Module 5: GK Omni POS Configuration Fundamentals
- Understanding configuration components
- Application parameters
- Store and terminal configuration
- Operator and role-related configuration
- Functional configuration
- Environment-specific settings
- Configuration dependencies
Module 6: POS User Interface Customization
- Understanding POS screen structure
- Screen layouts and navigation
- Buttons and functional controls
- Menus and user actions
- Dialogs and prompts
- Field behavior
- Customizing user interaction flows
Module 7: Operator and Role-Based Functionality
- Operator profiles
- User roles and permissions
- Function authorization
- Supervisor-controlled operations
- Restricting POS functionality
- Role-specific user experiences
Module 8: Customizing POS Workflows
- Understanding standard workflows
- Identifying workflow customization requirements
- Modifying transaction sequences
- Adding business validations
- User prompts and confirmation steps
- Exception handling
- Designing efficient cashier workflows
Day 3 – Transaction, Pricing, Promotion, and Tender Customization
Module 9: Sales Transaction Customization
- Item entry behavior
- Quantity and item modification
- Transaction-level controls
- Item and transaction voids
- Suspended transactions
- Returns and exchanges
- Transaction validation rules
- Special retail transaction scenarios
Module 10: Pricing and Promotion Customization
- Price determination concepts
- Price overrides
- Manual discounts
- Automatic discounts
- Promotion-related behavior
- Coupon handling concepts
- Transaction and item-level discounts
- Validation and authorization requirements
Module 11: Tender and Payment Customization
- Tender types
- Cash transactions
- Card payment integration concepts
- Alternative payment methods
- Split tender
- Refund processing
- Tender restrictions
- Payment-related validations
- Handling payment exceptions
Module 12: Receipt and Transaction Output Customization
- Receipt structure
- Transaction information displayed on receipts
- Custom receipt content
- Conditional receipt information
- Customer and promotional messaging
- Digital receipt considerations
- Transaction output requirements
Day 4 – Development, Extensions, and System Integration
Module 13: Development Environment for GK Omni POS Customization
- Development environment overview
- Project and component organization
- Configuration resources
- Custom development components
- Dependencies and libraries
- Development lifecycle considerations
- Version compatibility considerations
Module 14: Developing Custom POS Extensions
- Understanding extension points
- Implementing custom business logic
- Custom validations
- Custom transaction behaviors
- Event-driven processing concepts
- Reusable customization components
- Exception and error handling
- Logging custom functionality
Module 15: Integration with External Systems
- Integration architecture
- POS-to-back-end communication
- REST and web service concepts
- Request and response processing
- JSON/XML data exchange
- Integration with ERP and retail systems
- Product and pricing systems
- Inventory systems
- Customer and loyalty platforms
- Payment services
Module 16: Customer and Loyalty Customization
- Customer identification
- Customer information within POS transactions
- Loyalty integration concepts
- Loyalty identifiers
- Rewards and promotional interactions
- Customer-specific business rules
- Handling customer-related exceptions
Day 5 – Advanced Customization, Troubleshooting, and Deployment
Module 17: Advanced Business Rule Customization
- Complex transaction validations
- Conditional processing
- Store-specific requirements
- Terminal-specific behavior
- Role-based business rules
- Organization-specific retail rules
- Designing maintainable custom logic
Module 18: Troubleshooting GK Omni POS Customizations
- Common configuration problems
- Application and transaction errors
- Reading application logs
- Identifying customization failures
- Integration troubleshooting
- Configuration dependency issues
- Isolating standard versus customized behavior
- Root-cause analysis techniques
Module 19: Testing Customized POS Functions
- Preparing customization test scenarios
- Functional testing
- Transaction-flow validation
- Negative and exception testing
- Integration validation
- Regression considerations
- Validating business requirements
- Preparing customization changes for release
Module 20: Deployment and Customization Lifecycle Management
- Packaging customized components
- Configuration deployment
- Development, test, and production environments
- Release management concepts
- Configuration version control
- Rollback considerations
- Maintaining customization documentation
- Upgrade compatibility
- Managing customizations across GK software updates
Module 21: End-to-End GK Omni POS Customization Scenario
- Reviewing a sample retail requirement
- Translating business requirements into POS changes
- Identifying configuration versus development requirements
- Designing the customized transaction flow
- Implementing configuration changes
- Applying custom business logic
- Integrating required components
- Troubleshooting implementation issues
- Reviewing the completed customized POS solution
