Lead with a product index
Organise products and variants around stable identifiers. Include the materials and production information relevant to the buyer request.
Keep the records connected
Use an evidence index to connect each certificate, invoice, report or declaration to its source and the products it supports.
Separate audiences
A public passport can tell the useful product story. A private pack can contain confidential records for the specific buyer or auditor.
Show the gaps
Include the questions still open and the work being done to resolve them. A coherent pack can be useful without claiming completeness it does not have.
Prepare for change
Assign owners and a review process so the pack stays current when suppliers, product composition or documentation changes.
Apply this to one of your own products.
Check your starting point