If i want to add a customer to an organization the pop-up does not search for existing e-mailadresses, so i have to add them manualy. This is not efficient
Yes. If you want to change that you might vote on an existing ticket for this problem (e.g. https://jira.atlassian.com/browse/JSDSERVER-4417).
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.