You check the support package stack level through the manual path below in SAPgui.
System -> Status -> Component Button(in "SAP System data block") -> Installed Production Versions
You find the "SP Stack" shown in SAPgui is higher than the SP stack level in MP(Maintenance Planer).
Here is an example.
Information shown in SAPgui.
Information in MP.
SAP Systems based on SAP Netweaver ABAP
MP, Maintenance Planer, SP stack, Support Package Stack, status, Component, Installed Production Versions , KBA , BC-UPG-MP , Maintenance Planning Tools , Problem
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