I want to erase the set value of a Reference type flow variable in Flow Designer.

[ymmt]

Thanks for taking a look.

I would like to erase the value set for a flow variable of type Reference in Flow Designer so that nothing is set.

To date, I have tried the following methods, none of which have worked.

(1) I tried to erase the set values by leaving the data field blank in "Set Flow Variables" in Flow Logic.
(2) In "Set Flow Variables" of Flow Logic, I tried to overwrite the set value with undefined by setting "return undefined;" to "Togle Scripting".

If the flow variable was a string type flow variable, I could set it to "undefined" by the method (2), but I could not achieve this with the Reference type flow variable.

Please let me know if you can shed any light on this.

Thank you in advance.

[MDAQUIBK]

@ymmt  Was this issue resolved ? Are you able to update to empty ?

[Bruce Doiron]

Not sure if you ever found a solution but I finally got this to work in Flow Designer with a Reference field that references the sys_user table. Not sure it works with all Reference fields but worth the try.

Used the code: 

var emptyVal = "(empty)";
return emptyVal;

[Mohsin308]

Does work for other references.

[DrewW]

Also when are you setting the variable?  How is it getting set the first time?  Is this a subflow and you are trying to change the value of one of the inputs?

[ymmt]

Thanks, DrewW.

Currently, we are testing the operation with a very simple flow.

Thank you in advance.