Retention Tags and Policy in O365

Hi Experts,
I've read numerous articles and papers about retention tags and retention policies in O365. While I understand quite a bit of it, there are a few things I still can't figure out.

Please correct me if I'm wrong on any of this. But my understanding is
Any tag that is "personal" goes into effect only when a user applies that tag
The default tags such as deleted items and junk mail are always applied
The move to archive only work if the user has an archive enabled (personal or default)

However, in the default policy, there is a mystery tag called "recoverable items 14 days move to archive"

This is not listed in the retention tags so it's not editable as far as I can tell. What does this do?

I know in O365 by default, items that are deleted are moved to recoverable items after a set period of time, it is then recoverable for up to 30 days max before they disappear forever.

If a user has an archive, what does the recoverable items 14 days move to archive do? If it moves recoverable items to the archive in 14 days, will it remain there in the archive as recoverable forever? (instead of only staying for 30 days max?)
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Vasil Michev (MVP)Commented:
Your understanding is correct. The "recoverable items 14 days move to archive" tag's job is to move items from the Dumpster to the Archive mailbox Dumpster, if Archive is enabled. So yes, items will be recoverable over the 30 days limit, but only if the user does not remove them (of has not hard-deleted them). This does not guarantee you immutability, like the In-Place/Litigation hold do.

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ChiITAuthor Commented:
Thank you Vasil, sounds like they will remain in the archive dumpster as long as it's the retention policy that actually puts them there.

Thank you for the info...
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