Walmart is making program enhancements to the existing free 2-Day Shipping Program, to enable US marketplace sellers to add multiple fulfillment centers along with capability to manage them and easily configure item assortment setup for 2-Day program. The capability, Item assortment rules for 2-Day program setup, will part of the enhancements:
Create rules for items based on filter conditions like price, weight, category and then apply actions to specify the 2 Day coverage areas, sub regions. Simulate the rule to preview the items impacted and then activate the rule to easily manage assortment for 2-Day setup. Total number of rules activated + total number of rules Inactivated + total number of active rules deleted = 5 per day.
These APIs can be integrated with directly or via channel partners that have adopted these changes. These changes can also be accessed via Walmart Seller Center. The APIs use the standard header parameters as with other APIs listed in Developer Portal: .
Custom Assortment Workflow

Rules API JSON Schema
Download the Rules APIs JSON Schema: RulesJsonSchema.zip
Rule Access Changes
Rules API access can change accordingly based on seller migration to shipping templates.
Seller Status (New or Existing) | Onboarded to Two Day Program? | Shipping Templates Activation Status | Reverse migration to Two Day Program | Rules API access after seller activation to Shipping Templates |
---|---|---|---|---|
Existing Seller | Not Onboarded | NOT_ACTIVATED | NA | No |
Existing Seller | Not Onboarded | ACTIVATED | NA | No |
Existing Seller | Approved | NOT_ACTIVATED | NA | Yes |
Existing Seller | Approved | ACTIVATED | Yes | No |
Existing Seller | Not Onboarded | ACTIVATED | No | No |
Existing Seller | Approved | ACTIVATED | Yes | Only Read access to Two Day Rules for the Seller |
New Seller | Not Onboarded (No Two-day program access) | NOT_ACTIVATED (No migration required because Seller was never on Two-day program) | NA | No |