Hello,
I has process sale order in bpms.
I want by service task, create cardex product in database by info order approved.
Please help me.
Thanks.
Hello @Helen2020 ,
welcome to our forums. 
There are many ways to do this, please find first information about this here:
https://docs.camunda.org/manual/7.15/reference/bpmn20/tasks/service-task/
Jonathan