currently we have data from legacy systems to be migrated into CRM system. The options currently are
1. To use lsmw and do mapping and update the CRM online tables (I am not 100% sure how to do it. Will the output of lsmw be fed into a bapi which creates the orders if order data is migrated).
2. To use IDocs and do LSMW mapping and the output which is an IDoc is again fed into XIF adapter so that CRM middleware will take care automatically.
What is the best way and is there any other best way to do legacy system data migration..
Any idea will be greatly appreciated.