SAP有三种倒入数据的方法, LSMW, CATT, BDC, 但三种各有不同.
LSMW: Legacy System Migration Workbench
The LSM Workbench is an R/3 based tool that support when transferring data from non-SAP systems to
SAP R/3.
SHDB: BDC
for batch input or change, system will create program, and youcanchange the program.
SCAT:CATT(computer aided test tool)
screen record, system will not create program.