Practical notes for complex systems

Make enterprise software
a little easier to navigate.

A growing reference for the people who implement, operate, and improve ERP systems. Follow organized learning paths and find clear explanations without the noise.

Explore topics

Start here: Add and find parcels in an internal table

Learn step by step

Explore learning paths

All topics

SAP ABAP

Beginner-friendly ABAP tutorials and coding practice, organized from first programs through internal tables, business objects, and RAP.

SAP S/4HANA

Planning, configuration concepts, migration, and day-to-day use of SAP S/4HANA.

SAP Fiori & UX

Fiori apps, launchpad experiences, user roles, and practical interface guidance.

Start practicing

Begin with ABAP

Learn how internal tables work, then try a safe, fictional request-review exercise.