This mapping permits us to evaluate an expression in the context of the application and get the result to decide subsequent actions. It accepts two formats, one is a direct expression from the workflow expression engine and the other is a function expression that can be called from inside the system. The function parameters will be changed to the current record values if they exist.

 <map>
  <expression>uppercase('this string')</expression>
 </map>

 <map>
  <expression>accountname</expression>
 </map>

 <map>
  <expression>employees + 10</expression>
 </map>

 <map>
  <expression>if employees > 10 then 'true' else 'false' end</expression>
 </map>

<map>
  <function>
   <name>isPermitted</name>
   <parameters>
    <parameter>Accounts</parameter>
    <parameter>CreateView</parameter>
    <parameter>record_id</parameter>
   </parameters>
  </function>
 </map>

the isPermitted mapping above will be converted into:

isPermitted('Accounts','CreateView','74');

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