Moving from SAPGUI to browser-based clients (SAPGUI for HTML) is something else. As of NetWeaver 6.40, SAP uses integrated ITS. Not needing separated ITS servers is an enormous improvement.
This however means that with integrated ITS memory usage increases on the server side. For an SAP GUI for HTML approximately 3 MB per session is needed. Although this is not that much, it should be taken into account. Integrated ITS and the memory requirements are discussed in more detail in OSS NOTES 742048, 890606 and 885580.
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