Save activity as string - Multiple instance using parent case number
I have a process that launches a sub-process x times. The sub-process is really short with 1 activity that needs to be updated for each instance of the sub-process.
To update the activity, I use an external application and I want to use the web service "saveActivityAsString". These activities have all the same case number because they use the parent case number.
According to the documentation, I can only use the radNumber and taskName as parameter instead of case id or workitemId . I don't want to use performActivityAsString because the information sent does not end the task.
How can I update the tasks using a Bizagi web service without building my own web service?
Thank you for your help and have a nice day.