Hey everyone. We have a client who is a home builder, they have community sites for each neighbourhood that they develop. They are not happy with the current software provider and are considering having my company build DNN sites for each community. Most of the functionality we need is already available in DNN, but there's one thing I haven't been able to find yet.

Here's the deal: When they sell a house to someone in the neighbourhood the owner is given a piece of paper with a code on it. They then go to the community site and enter their name, address, and code. Once it is verified, they are given access to the site. This is to prevent people who don't live in the community from accessing the site. I am having trouble figuring out how we could implement something like this in DNN. Some of these neighbourhoods have as many as 30,000 residents, so it needs to be an automated process, it would be a full time job just approving new users manually. Does anyone have any suggestions or ideas? Thanks.