Hi @Ezzyy798
The first thing is that you must define what it means with the box auto integration to create registration.
I'll explain a little, natively (you must configure a site, a library in Sharepoint) with a configuration you can integrate the Sharepoint library with Dynamics, obtaining from the SharePoint side folders associated with the tables that you define within the configuration, these folders you can upload attachments from Dynamics 365 to SharePoint and from SharePoint to Dynamics 365.
I leave you a video where I show you that you can load from both places
https://youtu.be/LPAZfTgcbI4
Another thing is when we talk about records, Dynamics 365 has its Dataverse database, it does not use SharePoint as a data source, you can configure virtual tables with SharePoint data sources but that is another different definition
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