Personally, the strategy of reducing your salary to break into SAP is not one I recommend. It gives companies the impression you are "bargain merchandise," and the fact is when they hire SAP talent, they have certain skills requirements they are not going to bend on, no matter how low you go.
A much better approach is to go after SAP by drawing on your strengths. So, you have to figure out what skills you have that SAP users might need. Let me throw out one possible approach: since you already have pre-sales experience, why not get a job in a pre-sales capacity for a third party software vendor that targets SAP users?
There are so many SAP enhancement tools out there, and they all have to be integrated into the SAP product in some way. You could learn a lot about SAP by taking on such a pre-sales position. The best part of that scenario is that you would be attractive to such companies because you have the pre-sales background. They might well be willing to train you to fill in the gaps. Adopting this gradual approach to breaking into SAP might take you longer, but you won't get as frustrated, and you will be able to pay your bills all along the way.
This was first published in October 2004