You can register using either your Salesforce credentials (oAuth), or with an email and password. Head over to https://app.dataimporter.io/register, choose the server that you would like to work with and complete the registration.
We have servers in both ๐บ๐ธ Dallas, TX and ๐ฉ๐ช Frankfurt, DE. When you register you will choose the region and your data will never leave that region. Our servers are all hosted by Linode.
No you donโt. We have a Free Tier which is only limited by the number of records that you can process (20,000).
Yes you can, simply head to the Instance page and click on Login to Production or Login to Sandbox.
There are lots of different errors you can receive from Salesforce. We have an article of 10 of the most common ones to help you out, otherwise feel free to email us and we will do our best to help.
Yes you definitely can! When on the mapping screen, search for the lookup relationship, and choose the Salesforce field that you would like Dataimporter to lookup the records via.