Show plan before each section except the first one

Question

I wanted to show a plan before every section in my presentation, so I have added the following code before \begin{document}

\AtBeginSection[]
{
 \begin{frame}<beamer>
 \frametitle{Plan}
 \tableofcontents[currentsection]
 \end{frame}
}

Now I would like to always do that except the first section, does anyone know how to deal with this exception?

Answer 1

Put the code you've mentioned after the \section to which you want it to apply from, rather than in the preamble

...
\section{Not in the list}
...
\section{First in the list}
\AtBeginSection[]
  {
     \begin{frame}<beamer>
     \frametitle{Plan}
     \tableofcontents[currentsection]
     \end{frame}
  }