The following metadata information should be added to Affirm during checkout initialization for any platform integration. These are a hash of keys to values in addition to other metadata information that should be passed in the checkout object.
| Attribute | Description | Example |
| **platform_type** | Name of the platform. | **"platform_type":** "Magento". |
| **platform_version** | Version number of the platform. | **"platform_version":** "2.2.3" |
| **platform_affirm** | Version number of the Affirm extension. | **"platform_affirm":** "Affirm_1.0" |