Die nette & junge Buchhandlung, die sich um jeden Kunden individuell kümmert und auch alle Bücher ohne Mindestbestellwert bundesweit kostenlos versendet.
SAP uses an User Exit (SMOD/CMOD) in order to make an enhancement of customers a lot more convenient. There are very many user exits available within SAP.
SAP Online Help (which is not in PDF files) can be printed only relatively complex and be found even sometimes as well. Therefore these PDFs are very helpful and they are a good tutorial for users. (Attention: This website is about 170KB large!)