SAP is the largest, most common used ERP system (ERP – Enterprise Resource
Planning), provided and supported by the in 1972 founded SAP PLC, which is the
largest software company in Europe, and the fourth largest in the world.
The system is modularized, and their borders are defined by the different
business areas. The two main categories of them are: core modules and industry-specific
The core modules manage those business processes which are indispensable for
every single company such as: finance (FI), controlling (CO), sales- and delivery (SD),
etc. The industry-specific solutions were developed for certain firms. For example SAP
Banking for banks, SAP for Oil & Gas for oil companies, SAP for Telecommunications
for telecommunications companies, SAP for Utilities for utility companies. Both of the
last two examples have a lot of customers who has contract account by the firm.
Therefore the SAP PLC developed a module for managing these contract
accounts (FI-CA) which performs their cost accounting with line items to protect the
general ledger of the explosion that could occur by the very high number of the line
items in cost accounting. It can achieve by managing open items of the millions of
clients of the company. This data isn’t lost, but it goes to the general ledger in a
summarized form bringing together by a reconciliation key. The bill can be created in
this module as well.
The topic of my thesis is the to demonstrate this FI-CA module, to describe the
processes of a telecommunication company, to plan, create and customize a company in
the SAP based on my self-made specification with the relevant transactions and master