suitable module course for SAP functional consultant..

Hi,

I am currently working as a project engineer in an industry,looking after project planning,execution, techno commercial activity, purchasing at some extent.

I am interested to switch job in SAP as functional consultant as i feel exciting working with it. I have decided to take training on MM module. However, i would like to know whichever else module i should do training with integrationg to MM.

Kindly suggest.