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Junction object possible by two Look up relationships


Many to many relationship is being created by junction objects , then below two options are possible to

create it ?


1)Object A Look up relationship--->Junction object <----Look up relationship Object B



2)Object A Master Detail relationship--> Junction object <--- Master Detail relationship Object B

Yes you can use both options as junction object but may not be exactly same features.

It is possible to create the Junction Object with Lookup fields. However there are advantages in case of Master detail in terms of security and dependency.


You should look into below article: