The portal in a tab doesn't affect how it works.
What is it that does not work: no new records are created in the line items? Can you give some detail on how you've constructed the relationship between the two?
If you have set it up to allow the relationship to create new records, then most likely the relationship is flawed; one side 'text', the other side 'number' perhaps, or the parent side field for the relationship is not generating a value (it needs to populate the child side with a value- if none exists- no child record).
Thanks for the help.
My Table Occurances are: Order, Order Line Item, Order Line item Product.
The portal is set to retrieve my lineitem records all with the same order #, assembying a view of all the records in that order. I am trying to be able to click in the portal and actually create the new records of products, in the line items table, but it won't let me add new items.
Its strange because right when I get it to work, I make a few changes on layout view and then suddenly it won't let me add anymore records. Sometimes a solid grey bar shows up.
I think I just got it! My Product ID key field i was selecting in the portal was from the Product table, not the Lineitem TO, so it was not triggering the new record.
THanks again for the help. I'm sure I will be back for more.