ITCM CU4 Installation failed with error Unknown product (DTSVMG) specification in JCL file.

Products

• CA Client Automation - IT Client Manager

Issue/Introduction

ITCM CU4 Installation failed with error Unknown product (DTSVMG) specification in JCL file.

Main():applyptf.exe does not exist in . Please check 
Main(): Beginning execution - Thu Aug 18 11:46:06 2022

Main(): Applyptf Wizard:
PTF: 99111508.JCL Node: <HOSTNAME>
PrereqsOK(): Unknown product (DTSVMG) specification in JCL file.
main(): Error!

Environment

Release : 14.5.CU4

Component : CA Client Automation

Resolution

Make Sure you have all the JCL files in extracted applyptf folder . 

Try executing the applyptf command line instead of executing exe.