Associating Anonymous Order with Customer

[TTMedia]

We have allowed guest checkout on our system, but sometimes after the first order, the customer will want to create an account.

How can we associate past orders with a certain email account?

[jmestep]

You would have to change the userid in the previous order's data to the new user id.

[mazhar]

one possible solution to locate the previous order could be to look for Email address and then associate new user id with old order data.