Working in sales support team want to learn SAP, which module is best and from where

Hi Biplab, If you want to pursue a career in the sales field itself then you can opt for SAP SD. there are several other modules provided by SAP for which I would suggest yo to contact any SAP authorized center. I would like to add here that, if you want to go for SAP training please choose a SAP

for the sap SALES you have to do the SAP-sa module or also you can join the SAP-fico