Getting a little frustrated at this point with what's what and what doesn't exist/work anymore. This is about retention policies, labels, label policies, etc. Nothing works since migrating to EO from on-prem Exchange 2016 CU20 DAG.
In on-prem ex23016 install we had retention policies in place for a) Deleted Items and b) move to in-place archive that were working perfectly. Migrated several mailboxes, policies stopped working (as I expected). Existing Retention Policies were not migrated; recreated new Retention Policy to test auto-delete of Deleted Items older than 30 days, applied to JUST MY MAILBOX. Nothing has been run; this was nearly a year ago, so "wait for it to process" isn't an answer.
I recently created a new Label for my 30 day delete process, applied it to a Label Policy for JUST MY MAILBOX; again, never ran. I deleted the LABEL POLICY over a month ago, and let it all sit. I've just recreated a new LABEL POLICY for the 30-day delete LABEL; nothing has run yet, but OK.
However, even though I can see that BOTH the Retention Policy in EO and the Label Policy are applied to MY MAILBOX, when I run get-mailbox myAccountName | fl retentionPolicy it displays NO RETENTION POLICY in place.
First, where is the reliable information? Clearly the Powershell (yes, I'm connected to an ExchangeOnline session) isn't reporting correctly, or the M365 Compliance Center isn't reporting it correctly. I also noticed that the mailbox info section in M365 Admin Center no longer has an option to display mailbox retention policies, but I'm assuming that was removed to force us to search elsewhere.
Any suggestions? At this point from all the MS and third-party documents and blogs and forum posts where "retention policies" are supposed to be set and how they're supposed to work. Neither management point (Powershell and the Compliance Admin Center) are providing reliable information.
Thanks.
Steve
ps: I've got the O365 For IT Pros books and they aren't providing any assistance for the most part.