Thank you for your replies.
This form and sub-form have no routines running. They populate based on queries. When it opens it reads the query to populate the fields, however; if nothing is present, then nothing fills the bound controls.
If nothing fills the bound controls and you attempt to close it, then those two error messages are all you get.
As stated, I can suppress one with the "acDataErrContinue" in the Form error handler, but I still get the last one.
Basically it is saying I am attempting to save a record with a missing related record in the base table. But, since there is no data, nothing should be attempting to save.