Sorry if I used the wrong term in my question, I'm not too familiar with accounting terms. Basically I want my customers to be able to store some amount of money (or voucher?) which can later be used to purchase something from my company. This isn't "Advance Payments" this is more like "customers saving accounts". I want to be able to track those accounts easily and I also want to categorize WHICH money/voucher comes from WHO and FOR WHAT purpose. Does OpenERP 7 support this? Thanks in advance.