How to fill alert text with actual webservice errors in CCMS

Hello Experts,

Need your kind support on below issue:

We need to set web service monitoring in CCMS.

We have monitoring set :

Followed below steps :

1) Created custom monitoring set and added below MTE's:

2) if we check the alerts for conversion monitor, we are not getting any information about failed webservices like error details,interface , we are getting below details:

Question : how to get below errors in alert text of CCMS(above screen) :

Thanks

Avadhesh