FPlease go through the following info mentioned in the link
http://help.sap.com/saphelp_nw04/helpdata/en/bf/27fd3b651f6a1ce10000000a11402f/content.htm
The specifications must match those that you made in transaction SICF in the Integration Engine. If you do not specify a user and password combination, or the combination is invalid, the system will terminate each attempt to access the Integration Engine with the message Transport Exception: http-Error 401 – Unauthorized.
The user must have the authorizations of group SAP_XI_APPL_SERV_USER on the Integration Server.
This can be possible by Having your user the authetication
SAP_XI_APPL_SERV_USER Uptil PI7.0
In PI 7.10 Your user must have a authorization of user PIAFUSER ( current equivalent to XIAFUSER ).
Maybe currently you can try
user XIAPPLUSER password : XIPASS, this would work if the passoword is not re-set by your administator.
This can be possible by Having your user the authetication
SAP_XI_APPL_SERV_USER Uptil PI7.0
In PI 7.10 Your user must have a authorization of user PIAFUSER ( current equivalent to XIAFUSER ).
Maybe currently you can try
user XIAPPLUSER password : XIPASS, this would work if the passoword is not re-set by your administator.
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