Hi,

In the case of the community, we need to build a document management module that is connected with the attachment module and the other related modules. In that module, we can add document expiry, document categorization, etc

In the enterprice edition already available the document management module is an entirely digitized document management system in your organization. Using this module, you can easily send, share, differentiate, and archive scanned documents within a few seconds. We can filter based on the tags categories workspace etc.

For more reference you can refer to the blog: https://www.cybrosys.com/blog/document-management-system-in-odoo-15-document-module

Hope it helps