Magento_InventoryDataExporter module is responsible for collecting inventory data

Stock Status

• Collects aggregated value of Stock Status described in et_schema.xml
• Depends on Inventory indexer which is used to get isSalable status and qty in stock.
• qtyForSale calculated based on Reservations API
• Stock is considered as infinite in the following cases:
  • Manage Stock disabled
  • Backorders enabled and Out-of-Stock threshold is set to 0.
• To calculate salable quantity Reservations API is used.
  • salable qty is calculated only for indexer in "on schedule" mode to prevent frequent reindexation during place order