Synchronization Matrix

Reference and Mapping Data

• Payment Methods: Magento → BC
• Shipping Methods: Magento → BC
• Websites/Store Views: Magento → BC
• Taxes: Magento → BC
• Attributes/Options/Sets: Magento → BC
• Customer Groups/Status/MSI Sources: Magento → BC

Catalog

• Simple Products: both directions, field-dependent
• Configurable Products/Variants: both directions, upload with limitations
• Bundles: BC → Magento
• Categories: both directions
• Images: both directions
• Related Items: both directions
• Store View Texts: BC → Magento

Sales

• Orders: Magento → BC
• BC Sales Document: created from download
• Shipment/Tracking/Invoice: BC → Magento
• Credit Memo Data: Magento → BC
• BC Credit Memo: not safely automated in version 27.10.0.16

Prices and Inventory

• Regular Price: BC → Magento during product upload
• Special/Tier/Customer Price: prepared routines, not consistently guaranteed
• MSI Inventory: BC → Magento

"Both directions" does not mean every field is synchronized bidirectionally. Define data ownership per field.