Gateways and conditional expression

I Just began Camunda, and need help with my diagram.
in my diagram, a user fill a form, and send it to the manager. manager should check the info and choose whether the user need to change any information in the form, or it is just ok.
I have an exclusive gate way. in condition expression once I wrote ${manager==‘clarification’} and ${manager==‘yes’}, (manager is the key of the manager form).
then i change $ to #.
then I deleted manager and ==
in all of these cases, I got this message:

Cannot submit task form b075d7b6-a989-11ed-8520-0242ac110005: condition expression returns non-Boolean: result has class java.lang.String and not java.lang.Boolean

Note that I used a select element in manager form. its key is manager,and it have two values.

can you share your bpmn file?

yeah, here is my file.
diagram_1.bpmn (15.5 KB)

I wonder is it could solve the issue if i change #{‘claification is needed!’} to #{claification is needed!}?
shall i use the labels or the values?

hi emira, i edited this bpmn ${expression} fixed issue.

may be your bpmn file contains a bug. at 60. line, you should delete this block.

delete and change conditions ==> ${}

Thank you Rasim. :pray:t3: