System setting does not allow changes to be made to object NOTE “Note Number”
In transaction SNOTE I was unable to Download SAP Note. I received below error:

Solution
- Navigate to transaction SE03/SE06 and select “Set System Change Option”.
- Change the Global Setting to “Modifiable”
- Find the Software Component/Technical Name mentioned in the note, and change to “Modifiable”
- Find the Namespace/Name Range mentioned in the Note and change to “Modifiable”. How to find Namespace look at the end this article. In my case it was: /SLOAP
- Save above change then you can download and apply the SAP Note through transaction SNOTE.
- After successfully applying Note you can change the System Change Options back to “Not Modifiable” if you wish.
- Similarly, the setting changes can be allowed in SCC4 with option “Changes to Repository allowed” for the client you log to.
How to find a namespace:
- Click correction Instructions and next the number of corrections:
and here Code Changes. The namespace is /SLOAP