Hi KNason76,
Unfortunately I have never seen a way to add the "Other Relationship" via import. As you mentioned this can be achieved manually within the NetSuite interface. I also took a look at the available mass updates to see if this would be a possible alternate solution and unfortunately it is not available there either. I would recommend logging an enhancement for this functionality with NetSuite support as I can see this being useful to others as well.
I hope this helps. Please let me know if there is anything else I can assist with.
Have a nice day,
Stephanie Lowry
NetSuite Certified Administrator
Aminian Business Services
NetSuite Support: support@aminian.com
(949) 407-8417 | (888) 800-5207 x 17
KNason76 replied on 12/27/2017, 01:59 PM: Stephanie – TY for responding, I checked the Mass Update as well but not luck. There is an existing enhancement open for this already. Added my name to it. Happy New Year.