I went through the documentation for "Asynchronous Service Processing", and implemented the logic in Rest Service as per provided instructions, however I am not able to see any entry created into the pr_sys_queues table for Pega-IntSvcs agent in case of fail scenario. 

I am using Pega 8.4 and tried both the configuration on service rule form, used the basic configuration for "Service Rule Processor" as well.

• Execute asynchronously (queue for execution)
• Execute synchronously (queue on error )

Can you please suggest on below:

Based on "Service Rule Processor" configuration, will service (Rest/SOAP) is supposed to create queue entry for Pega-IntSvcs agent? if yes then little explanation would be helpful.

Or

It is expected from service logic implementation to handle the error and queue the request for Pega-IntSvcs agent using explicitly Queue-For-Agent method?

Thank you