I need to create a master detail link, but don't fully understand the type of field to link the 2 tables. For example, in my master table I a have a field master_id and the detail table a field called link_id - but how can they link if I create a master record there isn't any rows to add for the detail table in the form, because I haven't created a detail record - hope you understand. Please advice the type of linking field I should use.