Cardinality condition n:m not working

Hi All,

I am trying hard to verify the cardinal relation n:m as provided in F4 help.

But I can able to create records in the foreign key table by making the foreign key field as empty for condition n =1.

Also for n= c, I could not able to create a record in the foreign key table with foreign key field value not present in the check table.

Thanks in advance,

Sri Suktha.