title: Tables using LIKE may only reference flat structures
body: <p>I wanna have a table parameter in a RFC function module of type <code>CGPL_TEXT1</code>, which uses the domain type <code>TEXT40</code>, which is a char 40.</p>
  
  <p>I tried to create it:</p>
  
  <p><code>IT_PARTS_DESCRIPTION   LIKE    CGPL_TEXT1</code></p>
  
  <p>But I keep getting this error</p>
  
  <blockquote>
    <p>tables using like may only reference flat structures</p>
  </blockquote>
  
  <p>I am also not able to use <code>TYPE</code>. If I do so, I get this error:</p>
  
  <blockquote>
    <p>Flat types may only be referenced using LIKE for table parameters</p>
  </blockquote>