Hi @vintagejewelbox ,
This is not something we can assist with directly as API-related issues are not something we offer direct support for. You can refer to our developer documentation for guidance on how to use Shopify’s APIs and also ask your question in the Partners & Developers section of the Shopify Community to seek advice from other members. You can also look at inventory management apps on the Shopify App Store to see if any of the apps there can assist you with what you’re looking for.