To create a linkage to a freight forwarder you have to go in the habblPortal to the section Administration.
The following screenshots show you the individual steps.
Click on the section Administartion
In the sidebar on the left click on Linkages
Choose SEND REQUEST in the search area
4. In the appearing dialog selectEmail (company)in the dropdown menu 5. In the second line enter the E-Mail adress of your Freight forwarder 6. In the third line you have to choose the business relation. Choose in the dropdown menu - Freight forwarder