retention Period

[MTayal]

While configuring Retention Policies for Teams Chats and Channels Chats and also for similar workloads, there are options to define duration of 5/7/10 years

How much duration is covered with E3 License, do we need E5 or any additional license for 10 year duration

[#2]

@MTayal Hi, actually I don't think that matters but instead the different license options opens up other possibilities (such as automatic etc). Now I'm no "license person" so can't say for sure, but have a look below as you'll find all the license details. If you need to have a proper official answer perhaps a call to sales is the way to go! :)

Microsoft 365 licensing guidance for security & compliance - Service Descriptions | Microsoft Docs

At the bottom of the above link

For specific rights by license, see the detailed Microsoft 365 Compliance Licensing Comparison. (PDF) | (Excel)