I have plenty of experience using PeopleSoft. However I have been out of the field for a few years. I would like to restart my career in SAP. I am prepared to train and build up my knowledge. I use SAP in my current job where it is used manage data related to manufacturing and dispatch of consumer goods to market.
You need to get a strong hold of SAP (the module you choose), this will come with concept clarity (mastering the theory) and lots of practice (both, transaction level and configuration). The other things for a functional consultant - understanding the issues faced by business, analytical skills and providing solution - your already posses these, from your prior experience as ERP consultant.