SAP AS ABAP Administration · AS ABAP Architecture & Instances

In some CRM scenarios with a mobile frontend, SAP inserts a fourth layer into the classic three-tier stack. Where does it sit, and what is it called?

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More in AS ABAP Architecture & Instances

You inherit a server whose instance name starts with 'D', so a teammate insists it only runs dialog work. Why is that assumption wrong?

In a multi-instance SAP system, which single component decides which instance is called the 'central instance', and what are all the others called?

A colleague spins up a full SAP NetWeaver AS with the database, application, and presentation all running on one host. What is the only legitimate use for that layout?

What single architectural fact turns an ordinary SAP system into what SAP calls a 'distributed system'?

Beyond running work processes, what core services does the primary application server (PAS) instance provide that make it mandatory in every AS ABAP system?

An instance directory reads DVEBMGS00. Decode the letters DVEBMGS — what service does each one stand for?

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