Frank,

>have you got any more ideas for me on this, please? The problem is that apparently the child biz objects do not have any changes made in their entity lists. I was making changes in their entities, not the entity lists. Can you tell me how I should be doing this, please?

It looks like you are getting child business objects in this line of code:

this.oPolicy.GetPolicyByPolicyHeaderFK(oPolicyHeaderEntity.PolicyHeaderPK);

Can you post that code for me?

Best Regards,