Limited Messaging Actions Available in Amazon SP-API: Only 'send_invoice' Action Returned

[zipit007]

I'm trying to send various message types to customers through the Amazon Messaging API. I’ve enabled buyer communication on my Amazon seller developer account. However, when I run the getMessagingActionsForOrder API call, it only returns the send_invoice action, even though I need access to more messaging actions.
Is there anything from my side that's stopping from limiting me with only one messaging action
message_response=messaging_client.get_messaging_actions_for_order(order_id=orderid, marketplaceIds='marketplace_id)
print(message_response)
output:
json format with only one action (sendinvoice)
I want to send extra information on my orders to the buyers inorder to do that I need more messaging actions please help me with this issue