1. From Setup, enter Packages in the Quick Find box,then select Packages.
2. Click Edit. Note This button doesn’t appear ifyou’ve already configured your developer settings.
3. Review the selections necessary to configure developer settings,and click Continue.
4. Register a namespace prefix.
5. Choose the package you want to convert to a managed package. Ifyou do not yet have a package to convert, leave this selection blankand update it later.
6. Click Review My Selections.
7. Click Save.