Replicate BP with Relationship

Hello Guys ,

I am replication a BP with the option Replicate by replication  model and it creates the bp in the target together with the relationship ,

However if do the same with the mdg option  Replicate by supplier selection   I select an specific number of BP the relationship and the bp

with who the first one has the relationship but it send both but no relationship.

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any idea  whats ging on ? what  could  I check ? .

besides that I dont know why the options in the menu are  duplicated

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I am using SOA .

thanks in advanced.