Hi Poornima,
I’ll attempt to answer your second question first. Your start shape needs to be a Solace LISTEN operation configured with the Persistent Transacted mode. This is the configuration that supports acknowledgements based on process completion state. Messages read by the LISTEN are acknowledged only after having gone through the entire process successfully.
At the end of your process, the SEND operation needs to either be configured as Persistent Transacted or Persistent Non-Transacted. The SEND’s persistent modes ensure messages are successfully published to Solace before the process can terminate successfully.
Back to your first question, I’ll assume your start shape is not a Solace connector and that your process ends with a Solace SEND. The SEND needs to be configured with a Persistent mode (same as other question). As for the start shape, the connector you use needs to support the equivalent of the Solace LISTEN Persistent Transacted mode explained above. From what I know, only LISTEN operations can track process execution states.