I have imported some data into two tables.

Customers

Customer's Products

This is a ONE-TO-MANY relationship. The problem is, in the original application, they are related by a field called "custno". After importing, I have managed to creating new fields as follows:

Customers primary key = _kp_customer_id

Customer's Product primary key - _kp_custprod_id

Customer's Product foreign key to customer file -

_kf_customer_id

After getting the new key fields populated properly and creating new links in the relationship graph, everything works perfectly; however, the links are showing the relationships are many-to-many instead of one-to-many.

Will this create a problem, and if so, how do I fix it? I didn't want to create a join table, because based on the data in the tables, it's not necessary.

How did you define the _kp_customer_id field in the Customers table?

It is an text field with an auto-enter calculation using Ray Cogolon's (sp?) base36 uID custom function.

I see my problem. I did not have it set to unique. Now my relationship graph is showing one-to-many as it should.

Thank you for the nudge in the right direction.

Filemaker doesn't know that. If the field does not auto-enter a serial number and isn't validated as unique, there's nothing stopping you from entering a duplicate value in the field - thus turning the relationship into a many-to-many.

In any case, this affects only the way the line is drawn in the relationships graph and nothing else.

Thank you for the clarification.