Hi Ashish
Which CPQ solution are you or your client using? At this time, we have the following options:
1. If it's SAP ERP based CPQ (VC/SSC), C4C integrates to that via a partner developed HCP based app. Find more details here: Cloud CPQ Express | Cloud Solutions | SAP Store
2. SAP C4C also integrates with FPX, a 3rd party cloud-based CPQ solution. Find more details here:
https://www.hybris.com/de/partner/hybris-extend/fpx
FPX for SAP Cloud for Customer on Vimeo
Thanks
Karan