I am trying to create a form with two synchronised subforms but am having problems. My form is based on a table (A) and my two subforms are based on two further tables (B and C). Table A has a many-many relationship with table B which further has a many-many relationship with table C. I can manage to create a form which is synchronised when table A has a one-many relationship with table B and table B has a many-many relationship with table C. However I cannot do this when there is more than one many-many relationship between these tables. I would be grateful is someone could provide some code or direct me in some way so as to create some. Thanks in advance.