# Scale
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After you have tested your Notify setup, this section helps you move to production and run OTP and verification messaging at scale. It covers how to move from the Basic tier to the Advanced tier, manage your spending and limits, monitor your messaging, understand which countries are supported, and meet the mobile carrier prerequisites for terms, privacy, and opt-in that apply to Notify messaging.

## In this section
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|  |  | 
| --- |--- |
| [Move to the Advanced tier](nx-notify-scale-tiers.md) | Move a configuration from the Basic tier to the Advanced tier. | 
| [Spending and limits](nx-notify-scale-spending.md) | Set a Notify spend limit and monitor your messaging costs. | 
| [Monitoring](nx-notify-scale-monitoring.md) | Track delivery with CloudWatch metrics, event destinations, and CloudTrail logs. | 
| [Supported countries](nx-notify-scale-countries.md) | See which countries each tier supports. | 
| [Quotas](nx-notify-scale-quotas.md) | Review the quotas that apply to Notify, and how to request increases. | 
| [Compliance and mobile carrier prerequisites](nx-notify-scale-compliance.md) | Meet the mobile carrier terms, privacy, opt-in, and support requirements. |