I've imported a bunch of companies with a csv file. All good and fine. In the next import I want to import the contacts or employees of those companies. So to get the matching field / ID - I have exported the companies with all available IDs into an csv file. 2 IDs are available, external ID and ID. I've tried both numbers when importing the contacts. Doesn't work.
So how can I import the contacts and match them with the corresponding company?