Hi Kevin,

>Did you check out the MM .NET Help topic "ForeignParentKeyField: Child Object Foreign Parent Key Field"? If you have set the ParentForeignKeyField property in the child business object but the value is still not getting updated, I recommend setting a breakpoint in mmBusinessObject.PopulateForeignParentKeyField() to see if this code is being executed.
>
Stepping through from mmBusinessObject.PopulateForeignParentKeyField(), it does execute but _ForeignParentKeyField = null so it fails here :)

		protected virtual void PopulateForeignParentKeyField()
		{
			if (this.ForeignParentKeyField != null && this.ParentKeyValue != null)
			{
				this.PopulateKeyField(this.ForeignParentKeyField, this.ParentKeyValue);
			}
		}

So, I'm missing where _PopulateForeignParentKeyField gets populated. Any insight?

Thanks,

Mike