ChangeLog:

Overdraft feature.
Issue in updating the rates after updating currency exchange rate - fixed

How it works

Enable overdraft and set the overdraft limit for the selected user. When order is placed by that user, amount will be reduced from the available overdraft. Once he fully avails the overdraft , he needs to add funds.

A full report is available for the site admin, on how much overdraft is availed by the users and the locked amount in overdraft as a whole and for the individual users.

The user will also have a detailed report on the usage of the overdraft.