Changing the Deletion Indicator 
Use
You can use the deletion indicator to control that documents are deleted after the next archiving run.
The same function enables you to set or remove the deletion indicator.
Prerequisites
You can set the deletion indicator in the following circumstances:
Procedure
If the document is linked to other R/3 objects, you see a warning message.
If you confirm this message, the system sets the indicator.
As soon as the deletion indicator is set the fields can no longer be changed.

You can still enter a document for which the deletion indicator is set as a superior document. You see a warning message if you enter a superior document that has this indicator.
Result
You can edit documents that have the deletion indicator in the following way:
Archiving, you can select documents that have the deletion indicator to be archived. After the archiving run, you can delete all the documents that have the deletion indicator.