Can we map Oracle Order management header Flexfields to custom fields service mapping support in a Subscription product?

You can map Order Management flexfields to a subscription product by copying attributes of a single order header extensible flexfield to the subscription header.

For more information, see How to Copy Custom Attributes from Order Management to Subscription Management (Doc ID 2986754.1) and How to Transform and Copy Order Line Level Attribute to Subscription Product (Doc ID 3011103.1) on My Oracle Support.