# Adobe Commerce Extension 4.0 ## System requirements * **API Fleet and version**: Digital River API version 2021-12-13 * **API** **Commerce platform version**: The Digital River Global Commerce version 4.0 Extension for Adobe Commerce and Magento Open Source (DrPay) is available for: * Magento Open Source 2.4.3, 2.4.4, 2.4.5, and 2.4.6 * Adobe Commerce on-premise (EE) 2.4.3, 2.4.4, 2.4.5, and 2.4.6 * Adobe Commerce on Cloud (ECE) 2.4.3, 2.4.4, 2.4.5, and 2.4.6 * You must adhere to the Adobe system requirements [here](https://devdocs.magento.com/guides/v2.4/install-gde/system-requirements.html) (including supported PHP and browsers). {% hint style="info" %} A Digital River account is required to use this extension. If you do not have a Digital River account, you can create a test account in our [Dashboard](https://dashboard.digitalriver.com/signup). The extension will not create an account for you. To upgrade to a production-ready account, contact . {% endhint %} ## Limitations and constraints Digital River does not support the following Magento features: * Customer Service Agent order placement * Multiple shipping addresses * Adjustment fees * Coupons and discounts cannot be used with static bundles. This limitation will be addressed in a future release. * When multiple partial refunds are completed for a single order, the final refund can fail due to rounding issues. This limitation will be addressed in a future release. * Paying Taiwanese orders with 100% store credit or gift cards is not supported at this time. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.digitalriver.com/adobe-commerce-extension/adobe-commerce-extension-4.0/ace-4.0.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.