Use
With this function you can edit documents created and stored in the Business Document Navigator.

You cannot edit a pure SAP ArchiveLink document.
This function is used for documents that can be edited with Desktop Office Integration.
You can:
Prerequisites
The MIME type of the document to be edited belongs to an application that is supported by SAP Desktop Office Integration. See also
BC - Desktop Office Integration.
Features
If the function Edit document is called for a selected document, the relevant application is started in the GUI and the document can be edited further. When you save the document, the following four functions are available:
In all four cases you can change the descriptive text and the keywords.

As of Release 4.6C, documents are locked when changes are being made. This prevents parallel editing of documents.
Activities
Select a document that you want to edit and choose Edit document in the symbol toolbar.