Shopify-Meta API Sync Issue

I'm seeking a freelancer to troubleshoot an API integration issue between Shopify and Meta Business. Currently, only some of our products are syncing, and I'm unsure about the API token permissions.

Key Requirements:
- Diagnose why only some products are syncing
- Verify and, if necessary, adjust API token permissions
- Ensure all products appear correctly in the Meta Business catalogue

Ideal Skills:
- Experience with Shopify and Meta Business API integrations
- Strong understanding of API permissions and troubleshooting
- Ability to deliver a clear report on fixes

Please provide a brief outline of your approach and relevant experience.