> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Sub-publishing

> Set up digital or physical sub-publishing on XBOX using the XBOX Sub-Publishing Form so another publisher can release your game in specific markets.

Sub-publishing permits another publisher that holds a valid publishing agreement with Microsoft to publish your digital product in specific markets (digital sub-publishing) or as a physical release (physical sub-publishing).

## Forms for sub-publishing agreements

When you're working with another publisher to sub-publish a game digitally or physically, you must complete and submit an XBOX Sub-Publishing Form. The primary publisher that submitted the [game concept](/publishing/game-publishing/publishing-processes/managed-creators/publishing-processes-game-concepts) is responsible for initiating this process. Forms for both digital and physical, or physical-only sub-publishing are available in the [XBOX Publisher Guide](https://aka.ms/xboxpublisherguide) in the **Forms** section. If you don't have access, speak to your XBOX contacts.

## Requirements for sub-publishing

Each **XBOX Sub-Publishing Form** contains full guidance on the requirements for sub-publishing. Review this guidance and speak to your XBOX contacts if you have questions.

<Note>
  The sub-publisher of your product must have a valid license agreement with Microsoft to publish the product, and the license agreement must be valid for the distribution method being considered. Sub-publishing might require the sub-publisher to submit a [game concept](/publishing/game-publishing/publishing-processes/managed-creators/publishing-processes-game-concepts). Ask your XBOX contacts if you're unsure about whether a new concept is necessary.
</Note>


## Related topics

- [XBOX game publishing overview](/publishing/game-publishing/publishing-processes/managed-creators/overview.md)
- [Submit game concepts](/publishing/game-publishing/publishing-processes/managed-creators/publishing-processes-game-concepts.md)
- [Submit game packages for Final Certification](/publishing/game-publishing/publishing-processes/managed-creators/publishing-processes-disc-and-digital-certification.md)
- [Submit game packages for Optional Certification](/publishing/game-publishing/publishing-processes/managed-creators/publishing-processes-optional-certification.md)
- [Submitting to XBOX certification in Partner Center](/publishing/game-publishing/publishing-processes/managed-creators/publishing-processes-submitting-to-certification.md)