MNS would be commercialized notice

It has been two years since Alibaba Cloud International first released its free trial Message Service in September 2016. The Message Service will no longer be provided free of charge and we will commence charging from March 1, 2019. Please ensure that your account has sufficient funds for your business to continue running this service. The detailed billing methods are described as follows:

1.Fees for the number of API calls
2.Fees for topic resources
3.Fees for queue resources.
Note that:
Topic fees = Fees for the number of API calls + Fees for topic resources
Queue fees = Fees for the number of API calls + Fees for queue resources
Fees for the number of API calls (Unit: USD per million calls)

The billing item applies to both the topic fees and queue fees.
Number of requests: Message Service counts the number of API requests in each billing period, measured in units of million, and accurate to 2 decimal places.
The message body is measured with a unit of 4KB. For example, a 256KB message request (publishing or subscribing) is charged for having initiated 256/4 number of API calls (64 API calls).
After the resources of topics (or queues) are deleted, you must stop all related API calls to the topic (or queue) to avoid being charged.
Fees for topic resources (Unit: USD per topic)
1.
1. Fees of topic resources are calculated by the API call number of each topic per day based on the tier pricing rules. Both sides that are authorized across Alibaba Cloud accounts are charged normally. All fees of both RAM users and Alibaba Cloud accounts are charged on the latter. (You need to authorize RAM users first.) 2.
2. Remove topics no longer needed to avoid being charged.
Fees for queue resources (Unit: USD per queue)

1. Fees of queue resources are calculated by the API call number of each queue per day based on the tier pricing rule. Both sides that are authorized across Alibaba Cloud accounts are charged normally. All fees of both RAM users and Alibaba Cloud accounts are charged on the latter. (You need to authorize RAM users first.)
2. Remove topics no longer needed to avoid being charged.
3. The fee protection mechanism for queue resources ensures that no more than 10 queues are charged in one region, and the excess queues are not charged. However, draft plans exist to introduce charging from June 8, 2019. (Excess queues are any quantity over the 10 queue limit. For example, assume that we have 13 queues, 3 queues are not charged.)
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