title: Raise Exception with custom message in ABAP
body: <p>I am coding a function which gets called via RFC and I want to find the most simple way to raise an exception with a custom message in ABAP. It would be great, if this could be done as short as possible, if possible on one line.</p>
  <p>I want this for debugging, not for running production code.</p>
  <p>Background:</p>
  <p>In the past I used the Python programming language. I like to debug without a debugger. I put some <code>assert 0, myvar</code> lines in to the code and execute the code. For me this feels faster then tradition debugger with stepping over or into code lines. I am searching for an equivalent to <code>assert 0, mvar</code> in ABAP.</p>
  <p>Raising an exception is just the strategy I have on my mind at the moment. Every other strategy to get to the overall goal is welcome.</p>