Authentication Issue while connecting to cloud app

Hi All,

I am facting authentication issue while my app submitting credentials to external cloud app (integration).

The recording of the script is happening perfectly fine, but when I am trying to replay getting error before connecting to cloud.

Action.c(8): Error -26547: Authentication required, please use web_set_user, e.g. web_set_user("domain\\user", "password", "host:port");   [MsgId: MERR-26547]
Action.c(8): Error -26630: HTTP Status-Code=401 (Authorization Required)

p.s:  1. proxy autoconfiguration file is specified in Run-Time Settings, this will have any impact on web_set_user function ?

2. Web_set_user   username & password contain special character '@"  

I have already added the web_set_user in the script but am still getting the same error.

Any help on this is highly appreciable.