For how long does the attachment stay after doing RFI on PO?

Summary:

Hello,

During the creation of a Purchase Order, a RFI has been done and an attachment has been added by the buyer. On the Approval notification page, the attachment can be seen. It can also be accessed via Document History - Submit - Approval flow - Camera icon

Does the attachment stay forever or does it disappear after some time? If yes after how much time?

Thank you.

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