# Rates

The '*Rates*' screen allows you to configure manual rates for services that do not have a rate provided with their data source. Before you can use this screen, it is required to [create](https://github.com/exivity/docs/tree/4455d34021b8c3e12ce1b09914544d96f4a3b270/transform/language/service/README.md) the necessary service(s) via the [**Transcript** ](https://olddocs.exivity.io/2.3.1/getting-started/data-sources/transformers#creating-transformers)engine. When that requirement has been fulfilled, you may configure *Global* and customer specific rate configurations. The following rate types are currently supported for *automatic*, *daily* and *monthly* services:

* automatic per unit
* automatic per interval
* automatic per unit & interval
* manual per unit
* manual per interval
* manual per unit & interval

*Automatic* services obtain the rate and/or interval value from a column you specify, whereas *manual* services allow the user to manually specify a rate and fixed interval money value. For *manual* services, if a *service definition* has *proration* enabled, the charge on the cost reports is calculated based on the actual consumption (see [services](https://olddocs.exivity.io/2.3.1/getting-started/configuration/catalogue/services)).

By default each service has a ***global*** rate configured, which will be applied to all ***accounts*** that consume this service. However, it is possible to use customer specific rates by overriding a ***service*** rate for one ore multiple accounts.

## Edit global rate for a manual service

A ***manual*** service can have up to 3 rate values that can be changed: the ***unit*** rate, the ***interval*** money value and the ***COGS*** rate. To change these values, go the '*Catalogue*' > '*Rates*' screen and click on the **service** name for which you want to change the global rate value:

![change rate for manual service](https://2831153169-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LHEKskLK6aXinV75Knl%2F-LHF0G1lYWN8xZtENgii%2F-LHF0U4qR91kCQBxM2nn%2Fchange-rate-for-manual-service.png?generation=1531424670334604\&alt=media)

To change the rate values of this service, consider the following:

1. *Effective date* is the date from when this rate is applied to the service. A service can have one or multiple revisions. You may add new rate revisions by using the ***Add Revision*** button. Existing rate revision dates can be changed using the ***Change Date*** option
2. The ***Per Unit*** rate value is the value that the service charged for, every (portion of) configured interval service. In this example, if this would be a *daily* service that is charged 1 euro per Gigabyte of database usage, and each day a 100 GB database is consumed, a value of € 100 will be charged per day (and € 3100 if used for entire month of December)
3. The ***Per Interval*** charge is applied every occurrence of the consumed service, regardless of the total consumed quantity of that service. In the previous example at ***2***, this would mean every day a value of 110 euro will be charged for a 100 GB database: 100 euro because of the standard rate + 10 euro for the fixed interval charge. Considering the same consumption for the entire month of December, the total charge for that month will be 31 x € 110 = € 3410
4. It is possible to configure a ***COGS*** rate for this service. This is applied the same way as the ***Per Unit*** rate
5. To delete an invalid or wrong revision, use the ***Remove Revision*** button. Do bear in mind you cannot delete the last rate revision for a service
6. To save your changes, which will also initiate a re-preparation of the applicable ***Report Definition***. click the ***Save Revision*** button *(see* [*defining reports* ](https://github.com/exivity/docs/tree/4455d34021b8c3e12ce1b09914544d96f4a3b270/gui/reports/defining_reports/README.md#preparing-a-report-definition) *to learn more about report preparation)*
7. If you are planning to make more changes to other services in the same report definition, use the ***Save Revision*** > ***Without Preparing*** option. This will avoid running the re-preparation several times, and allows you to start the re-preparation only after you've made all of the required rate changes.