Acknowledgements creating change orders every time

Good afternoon,

I am recieving acknowledgements (855's) from various vendors, but it doesn't matter what statuses I choose when I accept it, it ALWAYS makes a change order. I've tried all sorts of combinations. Be it putting Delete on all the line levels and the headers, rejected no detail on all of them. Rejected no detail on some.

What do I need to do to get rid of these acknowledgments if they are incorrect?

Thanks,

-Justin