Stacking Multiple Compute Savings Plans in a single Payer Account

The reduction in your Savings Plans recommendations can be attributed to several factors:

1. Recent Savings Plans purchase: If you recently purchased Savings Plans, this will affect your recommendations. The system takes into account your current Savings Plans inventory when calculating new recommendations.

2. Usage changes: Recommendations are based on historical usage. If your usage patterns have changed since your last purchase, this could result in different recommendations.

3. Stacking Savings Plans: While it is possible to purchase multiple Savings Plans, the recommendations you see are designed to maximize your savings based on your current usage and existing commitments. The system doesn't simply stack recommendations on top of each other.

4. Diminishing returns: As you cover more of your usage with Savings Plans, the potential for additional savings naturally decreases. This is because the remaining usage may have less consistent patterns or lower volume, making it harder to achieve the same level of savings.

5. Time-based variations: Recommendations can vary based on the lookback period (7, 30, or 60 days) used for the calculation. Different time periods may result in different recommendations.

6. Account-level vs. Organization-level recommendations: If you're looking at recommendations for individual accounts rather than at the organization level, this could result in lower potential savings.

It's important to note that Savings Plans recommendations are not forecasts of future usage, but rather calculations based on your historical usage patterns. The system aims to provide recommendations that will maximize your savings based on your current usage and existing commitments.

To get the most accurate recommendations, you should:

1. Refresh your recommendations to ensure they take into account your recent Savings Plans purchases and latest usage data.
2. Consider adjusting the lookback period to see if this affects the recommendations.
3. Check if you're viewing recommendations at the individual account level or the organization level, as this can impact the potential savings shown.

Remember, while stacking Savings Plans is possible, it's crucial to carefully evaluate your usage patterns and existing commitments before making additional purchases to ensure you're maximizing your savings potential.
Sources
Understanding your recommendation calculations - Savings Plans
Understanding Savings Plans recommendations - Savings Plans
Evaluating Savings Plans recommendations - Savings Plans