Change the string variable by selecting from the enum

Hi!
A variable of type ‘string’ is passed through the process, I want to change its value by selecting from the list of the Enum type. I can not understand how to do this … ( Error: “Form failure: <- Cannot get form for task 655f5cbd-0d51-11e7-97ed-005056a5accf”
Is this possible?

Hi @ntdim1973,

Could you please rephrase you question? What do you want to achieve? What is the actual behavior? How can we reproduce it? Could you please share the entire BPMN xml?

Cheers,
Roman