shopify copies pages even when its in a different template

Topic summary

Shopify page changes were appearing across multiple pages despite assigning different templates. The user attempted to add a contact form app to a single page, but the form (and other edits) showed on all pages.

Root cause: The form was added to the theme header. The header is a global layout section included on every page, so anything placed there replicates site‑wide.

Resolution: Move the contact form out of the header and into a page-specific section or the intended page template so it only displays where needed.

Status: Issue identified and resolved by the user. No remaining questions or conflicting viewpoints.

Summarized with AI on December 21. AI used: gpt-5.

I am having issues with the pages on my shopify store, at first all went well but when i decided to go from the main page to the secondary pages it all stopped working. I am trying to implement an app for Contact form in one of my pages but it keeps copying that app and all the other changes in the other pages. Even after i have put each different page in a different template they are still copying from each other. Any way i can fix this?

Ive now noticed the problem was i put the form i wanted to add in the header which is why it went on every page im stupid