I have developed mandatory add-on and its name is Validation. I have installed the version 7.0.247 and it is working properly. Now I want to upgrade this add-on to version 7.0.248. I have developed the zip file and it was upgraded properly through System Landscape Directory. I can see the upgraded add-on in Company Assignment.
When I logged in the SAP, it failed while installing. I checked 'Failed Add-Ons for Lightweight Development' and tried again. It gave me message as restart SAP.
What is the process of upgrading light weight add-on ? I can install newly developed light weight add-on but I can not upgrade it.