Send the following on WhatsApp
Continue to ChatFix: AccessToKeyVaultDenied when using KeyVault with Function App application setting https://blog.cynexia.com/fix-accesstokeyvaultdenied-when-using-keyvault-with-function-app-application-setting/
Fix: AccessToKeyVaultDenied when using KeyVault with Function App application setting https://blog.cynexia.com/fix-accesstokeyvaultdenied-when-using-keyvault-with-function-app-application-setting/