How can I add custom metadata to Stripe charges, customers, and more?

Custom metadata for Stripe charges, customers, and subscriptions can all be added via the Stripe Metadata API using WordPress filters.

Customer metadata can be added using the filter llms_stripe_new_customer_data.

Charge metadata can be added using the filter llms_stripe_new_charge_data.

Refund metadata can be added using the filter llms_stripe_refund_data.