When you log on webgui (SAPGUI for HTML), you get notification as below:
This KBA provides one setting to disable this pop up.
SAP GUI for HTML
"You have unread documents in your inbox", webgui, ~NO_LOGON_USEREXIT, Logon user exit , KBA , BC-FES-WGU , SAP GUI for HTML , BC-BMT-WFM , Business Workflow , BC-SRV-COM , Communication Services: Mail, Fax, SMS, Telephony , How To
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