Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Dear Arthur,
Good day!!
I understand your concern and to my knowledge, it’s not possible to reduce the retention period of the deleted items once it’s deleted either from the SharePoint Online or OneDrive for Business from 93 days to less because the policies are hold by Microsoft for all cloud tenants.
I agree with you having to ability to reduce or change the retention time period of deleted content in the SharePoint Online or OneDrive for Business will benefit the users and I suggest you to add your valuable idea as feedback in the SharePoint · Community (microsoft.com) which is the best place to share our ideas and improve the Microsoft products.
Moreover, I believe you can achieve your requirement with the help of custom Power Automate flow, I suggest you give a shot by posting your concern in the Microsoft Power Automate Community - Power Platform Community to get the detailed help from the experts.
Apologies for redirecting you to different community as the members in the category posted focus on the users with the Microsoft 365 concern and have limited knowledge on the Power Automate, so to get the fast and better assistance, we have redirected you in the correct path.
Appreciate your patience and understanding. Have a great day!!
Best Regards,
Sophia