Is there a way to make parameters on an expression rule optional?...

Question

Is there a way to make parameters on an expression rule optional?... OriginalPostID-35469 OriginalPostID-35469

Ashvin Kapur · Answer

Parameters on an expression rule are technically always optional - if you use the [parameterName]: to define your parameters, the process/rule will always pass in null for any parameters skipped. As Miguel has stated, there is a requirement to pass in at least one parameter if parameters exist in the expression rule, but if that's a problem for whatever reason, you can create a dummy variable that does nothing within your rule.

Abhay Giri · Answer

Hi Moritzw, 
 
As technically parameters in expression rules are optional always. If you don't want to pass any parameter value in the rule then simple pass the values by key-value expression.so for the missing key(parameter) it will take value Null as default. 
 
Regards 
Abhay