Difference between internal and external session

Hi experts,
I tried to read it many times but I am still very confused with it.
1. Each logon through Sap Logon will create a new external session? New Mode created through /o will create another internal session in this external session? Is it OK?
2. When are the data deleted from Sap Memory which are allocated through the command SET PARAMETER?
Thank you very much for your answers,
Radek

Hi,
1. Check these links below:
ABAP Memory - Internal Session
http://help.sap.com/saphelp_nw70ehp2/helpdata/en/9f/db9df735c111d1829f0000e829fbfe/frameset.htm
SAP Memory - External session
http://help.sap.com/saphelp_nw70ehp2/helpdata/en/9f/db9e0435c111d1829f0000e829fbfe/frameset.htm
difference between sap memory and abap memory
what is the difference between sap memory and abap memory
2. When You Free Memory ID, it clear the data stored in Internal or external session, else internal session memory remains till you end your current session and external memory till you log out from the system.
Regards,
Ni3

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Jorge,
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CALL FUNCTION Remotefunction STARTING NEW TASK Taskname
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●      In table RSADMIN, entry QUERY_MAX_WP_DIAG has value (column value) 1.
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GOOD
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TCODE (Transaction to be called)
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LSMW vs DX Workbench
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Message was edited by: Sreenivasulu Ponnadi

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