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.

**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"