


 Resolution
-----------



Amazon SNS and Amazon Pinpoint SMS charges can be higher than expected if messages exceed the [message parts per second (MPS) limits](https://docs.aws.amazon.com/pinpoint/latest/userguide/channels-sms-limitations-mps.html).


For more information, see [SMS character limits in Amazon Pinpoint](https://docs.aws.amazon.com/pinpoint/latest/userguide/channels-sms-limitations-characters.html). Also, [Publishing to a mobile phone](https://docs.aws.amazon.com/sns/latest/dg/sms_publish-to-phone.html) in the Amazon SNS Developer Guide.



###  To calculate your required SMS spending quota for Amazon SNS and Amazon Pinpoint



Follow the instructions in the **Calculate your required SMS spending quota** section of the following article: [How do I request a spending limit increase for SMS messages in Amazon SNS?](https://repost.aws/knowledge-center/sns-sms-spending-limit-increase)  


**Note:** For Amazon SNS, you can [subscribe to daily SMS usage reports](https://docs.aws.amazon.com/sns/latest/dg/sms_stats_usage.html) to monitor your SMS deliveries. For Amazon Pinpoint, you can [activate event streams to Amazon Kinesis](https://docs.aws.amazon.com/pinpoint/latest/developerguide/event-streams.html) to monitor your SMS deliveries. For more information, see [SMS events](https://docs.aws.amazon.com/pinpoint/latest/developerguide/event-streams-data-sms.html) in the Amazon Pinpoint Developer Guide.





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 Related information
--------------------



[Amazon Pinpoint pricing](https://aws.amazon.com/pinpoint/pricing/)


[Worldwide SMS pricing](https://aws.amazon.com/sns/sms-pricing/)







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