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UPM package Asset Store publishing workflow

Overview of the UPM publishing workflow and prerequisites for creating UPM packages.
Read time 2 minutesLast updated a day ago
You can create a Unity
Package

?

Manager (UPM) package from assets that you own and make it available to download on the Unity Asset Store. Manage UPM packages through the UPM publishing portal, which is different from the
asset package

?

publishing workflow.
Important
An
Asset Store package

?

must be compliant with Unity Core Standards and therefore meet certain requirements. For more information, refer to the Asset Store Provider Agreement and the Submission Guidelines.

UPM package and products

The UPM publishing workflow introduces the concept of a product. A product is different from a package in the following ways:
  • A product is a container that can include one or more UPM packages.
  • Customers can get a product from the Asset Store.
  • A package stores
    scripts

    ?

    , features, and assets for Unity, including Editor or Runtime tools and libraries, asset collections, and
    project

    ?

    templates.
Create a product draft in the Publisher Portal to manage and configure the structure of your packages. A product can contain one or multiple packages. For more information, refer to Create a Publisher Portal package draft.

UPM package namespaces

UPM packages require consistent namespaces. The following table shows each of the namespaces you need to set for the different stages of the UPM publishing workflow:

UPM workflow step

Namespace action

Description

Sign up to the UPM workflowSet a publisher namespace.Establish and claim a namespace for your packages during the enrollment process.
Create a UPM product draft for a single packageSet a product namespace.Assign a product namespace. The product namespace becomes part of the technical name.
Create a UPM product draft for multiple packagesSet a product namespace and a package namespace for each package.Assign a package namespace for each package you add. The package namespace becomes part of the technical name.
Create and validate UPM packagesSet the UPM package folder and 
package.json
namespaces in the 
name
field.		The UPM package folder and the 
package.json
name must match the package's technical name.
Upload UPM packagesThe Asset Store Publishing Tools checks and matches the package technical name to the one set on the Publisher Portal.If the publisher space doesn't match the product namespace, a button appears that you can select to create a new ID. If the technical name doesn't match the product namespace, a button appears that you can select to create a new product draft.
For more information about setting namespaces, refer to Create a Publisher Portal package draft.

Prerequisites

To publish assets to the UPM publishing portal, you must first create the following:
  1. Create a Unity ID.
  2. Set up an Asset Store publisher profile.
  3. Enroll as a UPM publisher on the Publisher Portal

Publish a UPM package to the Asset Store

To publish a
UPM package

?

to the Asset Store, you need to enroll on the Publisher Portal. To learn more, refer to UPM Publishing on the Asset Store. To create and publish a UPM package, perform the following steps:
  1. Create a product draft.
  2. Validate and upload your package.
  3. Submit the package for approval.
You can then check the status of the package, and once published, you can make further updates in the Publisher Portal.

Additional resources