Azure Cost Management helps you plan for and control your costs, the services include- Cost analysis, budgets, recommendations, and exporting cost management data.

Cost analysis. You use cost analysis to explore and analyze your organizational costs. You can view aggregated costs by the organization to understand where costs are accrued and to identify spending trends.
Budgets. Budgets help you plan for and meet financial accountability in your organization. They help prevent cost thresholds or limits from being surpassed. Budgets can also help you inform others about their spending to proactively manage costs.
Recommendations. Recommendations show how you can optimize and improve efficiency by identifying idle and underutilized resources. Or, they can show less expensive resource options.
Exporting cost management data. If you use external systems to access or review cost management data, you can easily export the data from Azure.

You can apply tags to your Azure resources to logically organize them by categories. Each tag consists of a name and a value. For example, you can apply the name Environment and the value Production or Development to your resources. After creating your tags, you associate them with the appropriate resources.

If your organization has several subscriptions, you may need a way to efficiently manage access, policies, and compliance for those subscriptions. Azure management groups provide a level of scope above subscriptions. You organize subscriptions into containers called management groups and apply your governance conditions to the management groups.

Azure Policy is a service in Azure that you use to create, assign, and manage policies. These policies enforce different rules over your resources, so those resources stay compliant with your corporate standards and service level agreements.