The key of the element instance to update the variables for. This can be the process instance key (as obtained during instance creation), or a given element, such as a service task (see the elementInstanceKey on the job message).
elementInstanceKey
Optional
The key of the element instance to update the variables for. This can be the process instance key (as obtained during instance creation), or a given element, such as a service task (see the
elementInstanceKeyon the job message).