You can monitor the integration processes at message level by using message monitor function.
Step 1 − Use T-Code — SXMB_MONI
This transaction can be used to display the message processing during an integration process or you can also move to a process view.
Step 2 − You also have the option of switching to Process View in this transaction. You can select Process checkbox and Execute.
Step 3 − In transaction SXMB_MONI, you can use different criteria to also select processes directly.
The process monitor T-code — SWF_XI_SWI1 expects the workflow number of the integration process.
You can determine the runtime cache by using the T-code — SXI_CACHE as shown in the following screenshot −