Trending @Accenture; Regarding DE can we get internal project even though my primary skill set is different ?

Is any approval required for doing this?

I forgot honestly. I was trained in .NET which was my primary skill. My secondary skill is SQL Server. I think at L11, we can swap it - but we need to inform supervisor. My first project was on .NET + SQL. So I asked my supervisor that DE is my interest area and he was supportive enough to allow me to swap. Later on I got lot of calls for DE related project, Currently working as Data Engineer for Banking Client.