Topic Tag: Cannot modify header Search for: Tips and Tricks HQ Support Portal › Forums › Topic Tag: Cannot modify header Viewing topic 1 (of 1 total) Topic Voices Posts Last Post eStore – PayPal PDT Verification Failed – I triple checked the PDT & Settings Started by: adam in: WP eStore Forum 2 6 11 years, 9 months ago admin Viewing topic 1 (of 1 total)