The main SAP transaction codes (tcodes) for managing customers in the Sales and Distribution (SD) module are:
For Customer Master Data:
VD01 – Create Customer (Sales Area)
VD02 – Change Customer (Sales Area)
VD03 – Display Customer (Sales Area)
For Customer Data Management in Finance (FI):
XD01 – Create Customer (General data)
XD02 – Change Customer (General data)
XD03 – Display Customer (General data)