Any one pls explain me in simple term what is instance and clinet in sap?
From my understanding Instance is SAP WAS AS and client is splitted within each instance.Pls correct me if am wrong...
In a simple language instance is a group of process/programs running which will serve the request of the various people connected to that Instance.
A Sap system (like Development or Quality or Production) can have one instance or multiple instances.
Every system will (mandotory) have a instace called "Central Instance" if central instance is down whole SAP system is down.
Client is a work area in the SAP.
SAP provides there default client 000, 001 and 066.
When you are loggin in to a system, you have to specify which client you want to enter.
Hope this will give you some basic understanding.