Cannot access fulfillment order

I am getting the following when checking for write_assigned_fulfillment_orders scope

Missing required scopes: \"write_assigned_fulfillment_orders\" requires \"write_fulfillments\".

I have the write_fulfillments scope on my app scope list and it is provided to the /authorize endpoint during the OAuth installation/update. I am unable to create a fulfillment service for the app with the following response.

"errors": "[API] This action requires merchant approval for write_fulfillments scope."

Since the scopes have been submitted to the store and updated, what could be the next problem in this process?

Scopes configured on the app.

read_discounts,
write_discounts,
read_fulfillments,
write_fulfillments,
read_gift_cards,
write_gift_cards,
read_inventory,
write_inventory,
read_locations,
read_orders,
write_orders,
read_price_rules,
write_price_rules,
read_product_listings,
read_products,
read_shipping,
read_third_party_fulfillment_orders,
write_third_party_fulfillment_orders,
read_customer_payment_methods,
write_own_subscription_contracts,
read_assigned_fulfillment_orders,
write_assigned_fulfillment_orders,
read_merchant_managed_fulfillment_orders,
write_merchant_managed_fulfillment_orders,
read_all_orders