Asset Rejected: Content in .unitypackage files

Symptoms:

• My package was rejected because it contains .unitypackage files.
• My package was rejected for the reason: "Contains prepackaged file".
• My package was rejected for having the entirety of its content in .unitypackage files.

Cause:

Your submission may have been rejected because the file organization of your package is against the Submission Guidelines.

According to sections 2.2.a and 2.2.b, .unitypackage files should not obstruct the content of your product. This prevents customers from viewing the package setup from its Asset Store page.

.unitypackage files are appropriate for content associated with alternative render pipelines, setup preferences, settings, or supplemental files for other render pipelines. However, this doesn't mean that your entire package should be sorted into nested .unitypackage files.

This is especially true for alternative render pipeline packages. If your package supports the Built-In Render Pipeline, Universal Render Pipeline (URP), and High Definition Render Pipeline (HDRP), one of these must be considered the default render pipeline for your product, and its contents should be unarchived and viewable.

Resolution:

Ensure that .unitypackage files don't obscure your package content. You can leave core or universal files outside the nested .unitypackages and only include files in .unitypackages that would break your package's functionality if left unarchived.

More information:

Asset Rejected: Package is too simple

Asset Rejected: Image quality required

Asset Rejected: Licenses required for third-party assets

Asset Rejected: Contains trademarks