Hello Kamalika,
Please check if this issue only happens for IC business roles for thoese users?
How about normal UIU business roles like SALESPRO ?
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For the users who has the problem, which business roles have problem? Is it only one specific business role? Or all the business roles assigned to those users?
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How the limitted business roles are assigned to thoese users? Via PFCG? or Via org. unit? etc?
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What's the difference between those users who have the problem and those users who don't have the problem? Are they assigned business roles in different ways?
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Please check SAP KBA 1637445 - CRM Web UI with Interaction Center business role hangs after logon.
Best Regards, Corrine