I'm stucked in my dev of an app where I try to build my ERD in the graph for a billing sys where a cust can
buy as many bundle he/she wants, but only once.
And same machinery should occur for the bundle: we could put as many "Cours" in it, but only once.
Choosing happens via Combo.
Maybe the hot weather here don't help me, but I'm sure the FMCommunity might help me out
here a graph of a split many to many relation
but how can I figure out the fact that the cust could only pick items only once.