Using Complex Gateway and Join Expressions
You build a join expression in Designer. Use the following procedure to specify the step’s incoming transitions and place them into a logical statement. During runtime, the join is satisfied when the conditions in the expression are true.
If no join expression is defined, process validation will fail with an error stating that the join condition is invalid.
To define a complex join expression
1. Open a process and click a complex gateway.
2. In the Properties view, click the Join Expression page.
3. Use the editor controls to create the expression you want.
Note that you can only select expression transitions and terms from a pre-defined list. Typing or pasting custom terms into the expression field is not supported.
4. Save the process.