Function Modules for R/3 Accounting 
The R/3 Accounting Interface consists of two function modules:
SAPWL_ACCNT_GET_DIRECTORY |
reads a table of contents describing the available accounting data from the CCMS Workload Monitor |
SAPWL_ACCNT_GET_SYSTEM_USAGE |
reads, prepares and cumulates the available accounting data |
Both have an RFC interface, which means that they can be accessed from outside the R/3 System.
See also:
Creating the Table of Contents Reading the Accounting Data