Document expires in this folder on &

What causes this issue?

The document will be deleted on this date due to the predefined
expiration date for this folder.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

If you do not want this document to be deleted, move it to another
folder.

Error message extract from SAP system. Copyright SAP SE.