| Integrations | Celerp Connect provides two-way connectors for WooCommerce, QuickBooks and Xero; Shopify sync is marked coming soon. | Catalogue sources include Shopify, Akeneo PIM, Magento, PrestaShop, Shopware, WooCommerce, FTP/SFTP, Google Drive, and Dropbox. |
| REST API | Every interface action is available through a documented OpenAPI 3.1 REST endpoint. | Lengow documents a REST API over HTTPS using JSON that supports order retrieval, acceptance, shipment, cancellation, refunds, marketplace actions and invoice documents. |