I am "battling a manufacturer" to receive a Certificate of Analysis, Certificate of Conformance, and a copy of the executed production record to review for dietary supplements prior to release from my warehouse. The manufacturer manufacturers and final packages the product for context. They are pushing back and requesting what FDA requirement states that they need to supply those items to a customer. I distribute from my warehouse, also for context. I have never had an issue with this before and typically as a customer, I request an executed batch record annually ( they are pushing back on this as well). That being said, I am struggling to "hit them with the GMP book" as the regulations (part 111) don't state these requirements specifically. Any help would be greatly appreciated.