Import relationship - match on custom field / import relationship fields

[John.K]

Hi all,

I'm trying to run an import that creates a relationship between two contacts in my database.

Question 1)

I am able to create the relationship perfectly well when I am using the 'External ID' or 'Internal contact ID' of the contact. However, it does not seem to work when trying to match on a custom field.

Eg, this works:

Email address > Matches to contact email address
Relation EID > Matches to 'Relationship name' > External ID

This doesn't:

Email address > Matches to contact email address
Relation custom ID > Matches to 'Relationship name' > Custom ID (Custom field)

Can anyone tell me what I'm doing wrong, or if this is even possible? Thanks 

Question 2)

There are custom fields attached to the relationship, ie:
Employee > Employer - Custom field 'Job title'.

I am able to set up the relationship using the import, but is is possible to import data into the 'Job title' field that is attached to the relationship?