Migrate region management

This guide explains how to migrate your integration from the RegionsService in Content API for Shopping to the RegionsService within the Accounts sub-API.

The Regions service lets you define custom geographic areas for use cases such as regional pricing and shipping overrides. You can use regions with services like RegionalInventory and ShippingSettings .

Key differences

• API structure:The Regions service is now part of the Accounts sub-API in Merchant API (for example, merchantapi.googleapis.com/accounts/v1/... ).
• Resource names:Merchant API uses resource names ( accounts/{account}/regions/{region} ) instead of separate merchant_id and region_id parameters in the URL path for Get, Update, and Delete operations.
• AIP compliance:Merchant API methods follow standard API Improvement Proposal patterns (such as using parent for List/Create, name for Get/Delete, and standard update_mask usage).
• Wrapper types:Fields that previously used google.protobuf.StringValue or google.protobuf.BoolValue in Content API now use standard optional fields in Merchant API.
• New features:
  • Merchant API introduces a RadiusArea type within the Region resource to define regions based on a radius around a point (initially with TRUST_TESTER visibility).
  • Batch methods - BatchCreateRegions , BatchUpdateRegions , BatchDeleteRegions - are available.
• Error handling:Error codes and messages provide more specific feedback.

Requests

Here's how request patterns change:

Item	Content API for Shopping	Merchant API	Description
Endpoint	https://shoppingcontent.googleapis.com	https://merchantapi.googleapis.com	The base domain changes.
Get Path	/content/v2.1/{merchant_id}/regions/{region_id}	/accounts/v1/{name=accounts/*/regions/*}	Merchant API uses the accounts sub-API and a resource name .
List Path	/content/v2.1/{merchant_id}/regions	/accounts/v1/{parent=accounts/*}/regions	Merchant API uses parent to specify the account.
Create Path	/content/v2.1/{merchant_id}/regions	/accounts/v1/{parent=accounts/*}/regions	Merchant API uses parent . region_id is a field in the request body.
Update Path	/content/v2.1/{merchant_id}/regions/{region_id}	/accounts/v1/{name=accounts/*/regions/*}	The resource name in Merchant API is part of the region object in the body.
Delete Path	/content/v2.1/{merchant_id}/regions/{region_id}	/accounts/v1/{name=accounts/*/regions/*}	Uses resource name .

Identifiers

Change your use of identifiers as follows:

Item	Content API for Shopping	Merchant API	Description
Account	merchant_id (integer)	account (integer, part of name or parent string)	Find the account ID embedded in the resource name string, for example, accounts/{account} .
Region	region_id (string)	{region} (string, part of name string)	Find the region ID embedded in the resource name string, for example, accounts/{account}/regions/{region} .
Resource Name	Not strictly used for requests.	name : accounts/{account}/regions/{region}	Standard identifier for Get/Update/Delete requests.
Parent Name	Not strictly used for requests.	parent : accounts/{account}	Standard identifier for List/Create requests.

Resources

The Region resource structure has minor changes:

Item	Content API for Shopping	Merchant API	Description
Resource Identifier	region_id (string), merchant_id (int64)	name (string): accounts/{account}/regions/{region}	Merchant API uses a single name field as the resource identifier.
display_name	google.protobuf.StringValue	optional string	Wrapper type removed.
radius_area	Not Available (N/A)	RadiusArea	This new type defines regions by radius. Includes region_code , lat_lng , radius , radius_units . By default, visibility is restricted.
regional_inventory_eligible	google.protobuf.BoolValue (output only)	optional bool (output only)	Wrapper type removed.
shipping_eligible	google.protobuf.BoolValue (output only)	optional bool (output only)	Wrapper type removed.

Methods

Change your use of methods as follows:

Item	Content API for Shopping	Merchant API	Description
Get Region	GetRegion	GetRegion	The request uses name .
Create Region	CreateRegion	CreateRegion	The request takes the parent from the URL, while the request body includes the region object and the region_id .
Update Region	UpdateRegion	UpdateRegion	The request uses region (which must include region.name ) and update_mask .
Delete Region	DeleteRegion	DeleteRegion	The request uses name .
List Regions	ListRegions	ListRegions	The request uses parent . page_size and page_token behavior is consistent.
Batch Create	N/A	BatchCreateRegions	This is a new method.
Batch Update	N/A	BatchUpdateRegions	This is a new method.
Batch Delete	N/A	BatchDeleteRegions	This is a new method.

Renamed fields

Item	Content API for Shopping	Merchant API	Description
Account ID	merchant_id	account (part of name or parent )	Integrated into resource name strings. This affects Region (response) and protobuf messages used to make API requests, such as CreateRegionRequest, GetRegionRequest, UpdateRegionRequest, DeleteRegionRequest and ListRegionsRequest .
Region ID	region_id	region (part of name ), region_id	Integrated into name for most, separate region_id field in CreateRegionRequest . This affects Region (response) and protobuf messages used to make API requests, such as CreateRegionRequest, GetRegionRequest, UpdateRegionRequest, DeleteRegionRequest and ListRegionsRequest .
Region Name (Output)	region_id	name	The primary identifier field in the response is now the full resource name . This affects Region .
Display Name	display_name	display_name	The type changes from StringValue to optional string . This affects Region .
Eligibility flags	...eligible	...eligible	The type changes from BoolValue to optional bool . This affects Region .
Update Mask	update_mask	update_mask	Region field paths. This affects UpdateRegionRequest .

Learn more

• Rest Resource: accounts.regions for Merchant API
• Regions guide
• Set up regions