
Symptom
You are opening the SAP web admin using the web browser, unfortunately, below error coming out,

Solution
Referring to SAP Note 1617090 – ICF system logon: Logon fails, logon cookie.
1) You have opened two browser windows and called the logon screen of the same system in both windows. You then enter the user and password on the first screen and submit the screen; the system issues the error message. The logon cookie of the second screen overwrites the logon cookie of the first screen in the browser. When you submit the first screen, the system now sends the logon cookie of the second screen and the check of the cookie in the back end fails.
Do not open two logon windows for the same system at the same time. If you want to connect to the same system twice, call the logon screens one after the other.
2) You activated the “Content Advisor”. (For example, in Internet Explorer (IE): you choose “Tools -> Internet Options” and go to the “Content” tab.) If the Content Advisor is active, due to a (probably runtime-dependent) response from IE, the system calls the logon page twice and the logon cookie is overwritten. When you submit the logon, the error message then occurs. (See also: http://support.microsoft.com/kb/924456.)
If you cannot deactivate the Content Advisor, your only option is to deactivate the XSRF protection as described in the solution. This problem occurs frequently when logging on to SAP Business ByDesign systems. We are in contact with the browser manufacturers to solve this problem.
3) You can configure whether the logon cookie is to be used and you can activate or deactivate it in the service settings. The default value depends on your release. The configuration switch is provided in transaction SICF. To access it, double-click a service to call the service settings and choose the “Error Pages” tab. On the “Logon Errors” tab page, choose the “Configuration” pushbutton for the system logon. In the system logon settings, set the “Deactivate Login XSRF Protection” indicator accordingly.



