Parameter management
Prepare validated application parameters and templates before scheduling deployment.
Use Parameter management to configure and deploy application parameters across one device or many devices.
Parameter management helps you control application settings without updating each device manually.
When to use this page
Use this page when you need to:
prepare parameter values before rollout
understand which files control available fields and saved values
decide whether the next task belongs on one device, a batch, or a template-driven rollout
Before you start
Confirm that:
your role allows you to manage parameters or run parameter rollouts
you know which application and version the parameters apply to
you have the correct parameter files or template data for the target devices
If you plan to deploy the configuration next, review:
What parameter management supports
Use parameter management to:
define and update application parameter values
manage parameter configuration for one device or many devices
prepare parameter data for rollout
separate frequently used values into basic or advanced parameter sets
Understand application parameters
Applications include executables and configuration files.
The configuration files store application parameters. These values control how the application behaves on the device.
Parameter attributes can be added when an application is introduced. They can also be updated later and downloaded to devices as part of a rollout.
Understand parameter files
Parameter management uses two XML file types:
VPFX — the Verifone Parameter Form file. This file lists the available parameters.
VPDX — the Verifone Parameter Definition file. This file lists the parameters and their configured values.
You configure the parameter values in the .vpdx file. Then upload the definition file to Device Management before scheduling a parameter rollout.
Use this rule when working with the files:
use VPFX to understand which parameters exist
use VPDX to define the values you want devices to receive
Understand parameter templates
A parameter template is a reusable set of parameter values for an application.
Use templates to:
manage a common configuration for a group of devices
update some or all parameters for an application
reduce repeated manual edits across the estate
One or more parameter templates can be configured for each application.
Basic and advanced parameters
Parameter management supports both basic and advanced parameter files.
Use this split to organize parameters by how often they are configured or reviewed.
You can:
view and edit parameters in the basic list
view and edit parameters in the advanced list
schedule rollouts for either parameter type to one device or a batch of devices
Application-specific VPFX files can be uploaded to Device Management. After upload, only the basic parameters configured for the selected application version are shown in the basic parameter view.
Choose the right parameter path
Use these rules:
use the single-device flow when one device needs review or correction
use the batch flow when one change must reach many devices
use add or delete actions when the parameter set itself must change
Document the application version, changed values, and intended targets before scheduling. Do not reuse a parameter set until its application version matches.
How parameter management fits into rollouts
Parameter management is the preparation stage for parameter deployment.
Most parameter rollout work follows this order:
define or update the parameter values
organize the values in a template or parameter file
schedule the rollout
monitor rollout progress and results
Verify before rollout
Before you move to scheduling, confirm that:
the application version is correct
the parameter values are saved in the intended file or template
the next rollout target is clear
the VPFX fields and VPDX values apply to the same application version
Do not schedule parameters until the application version, parameter file, and target scope agree. A valid value can still be incorrect for the selected application.
* the saved values match the documented change
Related deployment areas
Use these pages when you need to manage other rollout content:
Software management — manage software packages and reference sets
Content management — manage static files and media for rollout
Result
Parameter management prepares the configuration values needed for a controlled parameter rollout.
Next steps
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