> For the complete documentation index, see [llms.txt](https://docs.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verifone.com/verifone-central-device-management/verifone-central/rollouts/parameter-management/add-delete-parameters.md).

# Add/delete parameters

Use **Parameter Management** to add or remove parameters and parameter instances.

### Before you start

Confirm that:

* you opened the correct device and application
* you know whether you need to add a parameter, add an instance, or delete one
* you understand the effect of removing the selected value

### Open the parameter view

Go to **Verifone Central** → **Device Management** → **Devices** → **View Devices** → **Device Details** → **Details** → **Parameters**.

<div data-with-frame="true"><figure><img src="/files/O0waicP8bM4uV0F5dAud" alt=""><figcaption></figcaption></figure></div>

### Add or delete the entry

1. Select the relevant add or delete icon for the parameter or instance.
2. Enter the parameter details when you add a new value.
3. Confirm the action.

<div data-with-frame="true"><figure><img src="/files/5cJvxsqVgW10Kj9LjrxY" alt=""><figcaption></figcaption></figure></div>

Enter the parameter details and select **Add** to create the new parameter.

<div data-with-frame="true"><figure><img src="/files/0KRpVEDuX9mh8bDykh7D" alt=""><figcaption></figcaption></figure></div>

A confirmation popup message is displayed saying that the parameters were added successfully.

<div data-with-frame="true"><figure><img src="/files/Jl9J4JKML5Z9IwLzLz53" alt=""><figcaption></figcaption></figure></div>

A confirmation popup message is displayed before deleting the instance.

### Verify the result

After the action completes, confirm that:

* the new or removed parameter appears correctly in the parameter view
* the change was applied to the intended instance
* any follow-up download scheduling is completed if the device must receive the update

### Related pages

* [To view/edit basic/advanced parameters for a single device](/verifone-central-device-management/verifone-central/rollouts/parameter-management/to-view-edit-basic-advanced-parameters-for-a-single-device.md) — review or edit parameter values
* [Schedule rollouts](/verifone-central-device-management/verifone-central/rollouts/schedule-rollouts.md) — deliver the change to devices


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