Voucher Field provides invitation and discount vouchers for Content Types.
This module is not fully tested. Maintainers needed.
- it could be used on registration forms (by using it with content_profile module)
- Integration with CCK, Date and Token
- validation of expiry date
- choosing how many times Voucher can be used
- changing how Voucher Code is generated
- user with specified permission can send e-mails with Vouchers
If you need similar functionality, you may try to use related module:
It's not duplicate, there are different project goals (See:).