Do I need Orchestrator for the advanced assignment 2?
Yes. Because you will first upload the workitem ids to the Queues & then your another process takes those one by one.
Can’t we move forward without the Orchestrator? Or can we get a temporary license just to upload the assignment? Thank you.
No you will need Orchestrator, workflow 1 would insert data in orchestrator queue and workflow 2 would retrieve the values from that queue. If you are using community edition you will get two development licenses.