After the activity gets created, Complete NES and check error in Audit trail of the candidate.
Failed to send data to SF: The remote server returned an error: (500) Internal Server Error. Candidate Info object is not found. Cannot proceed with Post PHV. Returning errors
"Enable External ATS-ONB-EC Integration" was disabled.
Enable "Enable External ATS-ONB-EC Integration" in Provisisoning under Company Settings
KBA , LOD-SF-OBD , Onboarding , Problem