Dynamic
Only the sum aggregation type is compatible with the dynamic charge model.
If you have a different use case, please reach out to the Lago team for assistance.
Select the dynamic charge model if you calculate the price manually or if prices fluctuate during a billing period (e.g., for SMS APIs, AI models, etc.), and you want to apply a specific total amount per event using the property precise_total_amount_cents.
Let’s take the example of our AI company. You may want to charge a custom price per event. Consider the following list of events:
| Event | Metric | Unit | Total amount |
|---|---|---|---|
| Transaction 1 | Dedicated Instance | 7 | $0.70 |
| Transaction 2 | Dedicated Instance | 5 | $0.55 |
| Transaction 3 | Dedicated Instance | 10 | $2.20 |
| Event | Metric | Unit | Total amount |
|---|---|---|---|
| Transaction 1 | Dedicated Instance | 7 | $0.70 |
| Transaction 2 | Dedicated Instance | 5 | $0.55 |
| Transaction 3 | Dedicated Instance | 10 | $2.20 |
At the end of the period, the invoice will generate one fee of $3.435 (see example bellow).
| Item | Unit | Unit price | Amount |
|---|---|---|---|
| Dedicated Instance | 22 | $0,156818 | $3.45 |
To display more detailed information on fees, please refer to the custom invoice grouping or the pay in advance option.
Only the standard & dynamic charge models support the custom invoice grouping.
Dynamic
Only the sum aggregation type is compatible with the dynamic charge model.
If you have a different use case, please reach out to the Lago team for assistance.
Select the dynamic charge model if you calculate the price manually or if prices fluctuate during a billing period (e.g., for SMS APIs, AI models, etc.), and you want to apply a specific total amount per event using the property precise_total_amount_cents.
Let’s take the example of our AI company. You may want to charge a custom price per event. Consider the following list of events:
| Event | Metric | Unit | Total amount |
|---|---|---|---|
| Transaction 1 | Dedicated Instance | 7 | $0.70 |
| Transaction 2 | Dedicated Instance | 5 | $0.55 |
| Transaction 3 | Dedicated Instance | 10 | $2.20 |
| Event | Metric | Unit | Total amount |
|---|---|---|---|
| Transaction 1 | Dedicated Instance | 7 | $0.70 |
| Transaction 2 | Dedicated Instance | 5 | $0.55 |
| Transaction 3 | Dedicated Instance | 10 | $2.20 |
At the end of the period, the invoice will generate one fee of $3.435 (see example bellow).
| Item | Unit | Unit price | Amount |
|---|---|---|---|
| Dedicated Instance | 22 | $0,156818 | $3.45 |
To display more detailed information on fees, please refer to the custom invoice grouping or the pay in advance option.
Only the standard & dynamic charge models support the custom invoice grouping.