MSI Roadmap

Backlog which describes the deliverable state of Multi-Source Inventory project.

See current status on the Project Board

As Magento Inventory considered as a community-driven project - all the work implemented along the project will belong to Magento Open Source edition (former Magento CE).

There are 3 Milestones where we started investigation/design/coding:

Table of Contents

• Milestone 1, Minimal Viable Product
• Milestone 2, Preparation for 2.3.0 Magento Release
• Milestone 3, New Inventory Configuration, B2B, Elasticsearch
• Milestone 4, Remove dependencies to CatalogInventory module

MLS1

Milestone 1: MSI MVP (Minimal Viable Product) 1st of June, 2017 - 19th of June, 2018

Story Size Estimation: S=1, M=3, L=10, XL=20

Status	Estimate	Story	PR(s)	Open Tickets
✅	1	Introduce new API for Source Management	28
✅	1	Provide Web API for Source Management	26
✅	3	Manage multiple sources admin UI	28, 37, 32
✅	3	Introduce APIs for products assignment to sources. SourceItem interface and its Repository. Cover source item management scenarios with Web API tests	38, 36
✅	1	Read API. Stock interface and its management	35
✅	3	Source assignment per each product Admin UI
✅	1	Sources to Stock assignment API	39
✅	1	Admin UI for Sources to Stock assignment	39
✅	1	Cover with WEB API all existing scenarios for SourceItem and Source to Stock linkage	53
✅	3	New indexing of Inventory and creating Virtual Aggregated Stock Items based on linkage rules	49
✅	10	Introduce Reservation API. Append only reservations	64
✅	3	Implement runtime calculation of Stock Quantity taking into account the reservations happened	94
✅	3	Implement Reservation Clean-Up	94
✅	3	Default Source and Stock. Creation of Default Source and Stock for it. Including admin UI	113, 121, 118, 122, 126
✅	10	Import/Export of Sources (new functionality + admin UI)	147, 116
✅	3	Add Drop Shipping support
✅	3	Make Stock calculation and check availability services to support Backorders functionality	156
✅	3	Multi Dimensional Index for Stock Inventory. Add support to invalidate all dimensions/some dimensions/partial update	141
✅	1	Stock to Website mapping (with possibility of mapping to custom Sales Channels)
✅	3	Add Stock/Website mapping UI	168, 173
✅	1	Stock Removal. Throw an exception and allow to delete just unassigned stocks	171
✅	1	Website creation. We should assign Default stock to newly created website.	165
✅	3	Add new index on Reservation which will update both OLD StockItem::Qty and StockStatus::Qty	170
✅	3	Migration M1.X, M2.1.X -> MSI	198
✅	1	Import/Export of products aware of Sources	211
✅	3	Adapt OLD Cataloginventory StockItem to work through new Inventory interfaces	198
✅	3	Adapt OLD Cataloginventory StockStatus to work through new Inventory interfaces	198
✅	3	Checkout adaptation. Adapt CatalogInventory\StockItem configuration for Multi-Source purposes
✅	3	Substitute stock deduction on current checkout flow with Reservation placement. Async stock deduction	295
✅	3	Admin part (order in admin panel). Substitute stock deduction in admin panel with Reservation placement
✅	3	Introduce Source Selection Algorithm extension point
✅	3	Add Source Code attribute, to provide an ability not to depend on internal Magento surrogate identity (SourceId). Fix Product and SourceItem import/export functionality, which currently use SourceId (Added to MVP backlog by request of Mark)	307, 298
✅	3	Add Source Delivery awareness to Order page	315	Tickets
✅	1	Run Source Selection Algo by request on Order page		Tickets
✅	3	Adapt Returns (SalesInventory). All returns should happen on Default Source		Tickets
✅	3	Low Stock Notifications to Merchant on the level of source.	321	Tickets
✅	1	Product Alert for Customers on the level of stock Product Alert).		Tickets
✅	1	Update Low Stock Report
✅	5	Adapt OLD CatalogInventory all other APIs	269, 304	Tickets
✅	5	Inventory Catalog Search		Tickets
✅	5	Shopping Cart Update		Tickets
✅	3	Simplest “By Priority” Algorithm implementation		Tickets
✅	1	Processing of different order statuses. Reorder (close Reservation, create new Reservation)
✅	1	Processing of different order statuses. Cancel Order, Partial cancel		Tickets
✅	1	Change qty on Invoice step of Order page		Tickets
✅	1	Adapt All cache invalidation taking into account new extension points (new Inventory APIs)
✅	3	Make Source Selection Algorithm to be compatible with: Configurable product
✅	3	Update/Change source assignment in the existing orders
✅	10	Add MSI content to Merchant documentation
✅	10	Basic MFTF Test Coverage

MLS2

Milestone 2: Preparation for 2.3.0 Magento release, Group product type support, Mass Inventory re-assignment. Stabilization. 13th of July, 2018 - 16th of November, 2018.

Story Size Estimation: S=1, M=3, L=10, XL=20

Status	Estimate	Story	PR(s)	Open Tickets
✅	L	Add Support of Multi-Sourcing for Grouped product
✅	L	Mass Inventory action (re-assign Source Items from/to different sources)
✅	S	Support Negative Threshold for Backorder functionality
✅	L	Prepare MSI for 2.3 Magento Release

MLS3

Milestone 3: Full B2B support, Elasticsearch support, Distance Based Algorithm

Status	Estimate	Story	PR(s)	Open Tickets
✅	M	Full support of Multi-Sourcing in B2B edition
✅	M	Full support of Multi-Sourcing for Elasticsearch adapter
🔃	XL	Add Support of Multi-Sourcing for Bundle product
✅	L	“Minimal delivery cost” Algorithm (Geo Positioning Based source selection) (Using ZIP addresses open database)	1866
✅	XL	MFTF Test Coverage of S0/S1 scenarios		Filter By Label
🔃	XL	Store pickup support for Multi-Source Inventory
✅	L	Performance Improvements	1937
✅	L	CLI tools for fixing corrupted reservations which affect Salable Quantity calculation
✅	S	MSI + Product GraphQL API integration
✅	M	Export aggregated stock data (Salable quantities and Stock status)

MLS4

Milestone 4: Remove dependencies to CatalogInventory module

Status	Estimate	Story	PR(s)	Open Tickets
	M	Add an ability to assign additional sources to Default Stock (has dependencies on Bundle product support)
	M	Make Default Source/Stock switchable (has dependencies on Bundle product support)
	M	Drop existing CatalogInventory index and fully substitute it with new one provided by Inventory (has dependencies on Bundle product support)
	M	Performance improvements, cover MSI with PAT scenarious
	M	Assign Source Selector for Processing of Returns/Credit Memo

Product Backlog (Further Milestones)

Story Size Estimation: S=1, M=3, L=10, XL=20

Status	Estimate	Story	PR(s)	Open Tickets
	S	Add ability to specify that Source has some type (aka Dropshipper) to apply it for source selection
	XL	Stock Item Configuration API	1553
	M	Reservation on the level of Source
	M	Stock Reservation by time (Shopping Cart reservation by time)

• Eliminate EE functionality of ScalableInventory (S) (moved from MLS1)
• Configuration of the Shipping Options per source (M) (moved from MLS1)
• Product assignment per each source Admin UI (M) (Postponed)
• Improve modularity of Inventory. Make it agnostic to Sales, Checkout, Quote. (M)
• Integrate Source Selection Algorithm to Checkout process (XL)