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Stock and Source Configuration design
The main technical concept we follow in MSI arhitecture is to segregate Command and Query APIs.
In our case the role of Query APIs plays StockItem related interfaces and services, as the StockItem entity is an aggregated indexed data among the physical locations (Sources), so that StockItem data is calculated based on the data we have per Source level.
This concept has been used for Quantity and Salability status calculation, that's why Magento front-end which works only with Stock Services (i.e. IsProductSalableInterface, IsProductSalableForRequestedQtyInterface, GetProductSalableQtyInterface) is agnostic to the fact whether Magento is Single or Multi-Source under the hood, and the number of sources from which given Stock consists of don't affect the system performance.
You can get more details about this concept from video of CQRS and EventSourcing webinar
Multi-Source Inventory developed by Magento 2 Community
- Technical Vision. Catalog Inventory
- Installation Guide
- List of Inventory APIs and their legacy analogs
- MSI Roadmap
- Known Issues in Order Lifecycle
- MSI User Guide
- 2.3 LIVE User Guide
- MSI Release Notes and Installation
- Overview
- Get Started with MSI
- MSI features and processes
- Global and Product Settings
- Configure Source Selection Algorithm
- Create Sources
- Create Stock
- Assign Inventory and Product Notifications
- Configure MSI backorders
- MSI Import and Export Product Data
- Mass Action Tool
- Shipment and Order Management
- CLI reference
- Reports and MSI
- MSI FAQs
- DevDocs Documentation
- Manage Inventory Management Modules (install/upgrade info)
- Inventory Management
- Reservations
- Inventory CLI reference
- Inventory API reference
- Inventory In-Store Pickup API reference
- Order Processing with Inventory Management
- Managing sources
- Managing stocks
- Link and unlink stocks and sources
- Manage source items
- Perform bulk actions
- Manage Low-Quantity Notifications
- Check salable quantities
- Manage source selection algorithms
- User Stories
- Support of Store Pickup for MSI
- Product list assignment per Source
- Source assignment per Product
- Stocks to Sales Channel Mapping
- Adapt Product Import/Export to support multi Sourcing
- Introduce SourceCode attribute for Source and SourceItem entities
- Assign Source Selector for Processing of Returns Credit Memo
- User Scenarios:
- Technical Designs:
- Module Structure in MSI
- When should an interface go into the Model directory and when should it go in the Api directory?
- Source and Stock Item configuration Design and DB structure
- Stock and Source Configuration design
- Open Technical Questions
- Inconsistent saving of Stock Data
- Source API
- Source WebAPI
- Sources to Sales Channels mapping
- Service Contracts MSI
- Salable Quantity Calculation and Mechanism of Reservations
- StockItem indexation
- Web API and How To cover them with Functional Testing
- Source Selection Algorithms
- Validation of Domain Entities
- PHP 7 Syntax usage for Magento contribution
- The first step towards pre generated IDs. And how this will improve your Integration tests
- The Concept of Default Source and Domain Driven Design
- Extension Point of Product Import/Export
- Source Selection Algorithm
- SourceItem Entity Extension
- Design Document for changing SerializerInterface
- Stock Management for Order Cancelation
- Admin UI
- MFTF Extension Tests
- Weekly MSI Demos
- Tutorials