We tested '\' escaping the special character and the SCP job fails flat.
The job has the following attribute that contains a special character, '&':
scp_remote_dir: "/tmp/12345&Perf/R2.3/"
Release : 11.3.6
Component : CA Workload Automation System Agent
SE findings:
Based on below Windows documentation, ^ should be used to escape & and other special characters.
https://www.robvanderwoude.com/escapechars.php
Escaping cannot be handled in the product as it cannot differentiate whether the user wanted to use & as windows literal (like running multiple commands echo hello & dir) or if the user wanted to treat & as data in the file path.
We ran the inhouse tests and confirmed that it is working after following the Microsoft Windows escaping sequence for the special characters.