# Resource attributes

> An attribute is a parameter value shown on a resource's Overview tab, such as the port a deployed website listens on

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Every parameter value a resource includes is on its **Parameters** tab. An attribute is one you have promoted to the **Overview** tab, beside the resource's group, owner, and rate, making it immediately visible.

## Show a parameter as an attribute

Attributes are chosen at the parameter level, not the resource level, so the setting applies everywhere that parameter is used.

1. Go to **Admin** > **Parameters** and open the parameter.
1. Enable **Show as Attribute**. The switch saves once set.

A resource displays attributes it has values for, ordered by label. The same setting governs servers, where the value appears on the server's Details tab. Enable it for a parameter used by both only if it belongs on both.

## Give the attribute a value

The parameter must exist before any value can be assigned to it. There are two ways to provide a value.

**At order time.** Add the parameter to the blueprint's **Parameters** tab and set its **Destination** to **Resource**, which sends the user's order-form input to the deployed resource rather than to the servers it builds. See [Blueprint-level parameters](/docs/cmp/use/blueprints/customize-order-form/blueprint-level-parameters/).

**During deployment.** A plugin build item can write a value that is only known once the resource exists, such as the URL or port a service ends up on, by calling `resource.set_value_for_custom_field("parameter_name", value)`. The [CloudBolt Forge](https://github.com/CloudBoltSoftware/cloudbolt-forge) has examples that store this kind of metadata on a resource.

## Related

- [Blueprint-level parameters](/docs/cmp/use/blueprints/customize-order-form/blueprint-level-parameters/): Add a parameter to a blueprint and choose where its value lands.
- [Parameters](/docs/cmp/configure/order-forms-and-pricing/parameters/): Create the parameter and set its type, options, and constraints.
- [Resource types (XaaS)](/docs/cmp/use/resources/resource-types/): Show a parameter as a column on the list of resources of one type.