**Experience Hub > Wallet passes**.
2. Click the wallet pass you want to edit.
3. In the upper-right corner, click **Save as draft**.
**Result**: This creates a new draft version of the wallet pass, where you can make your edits.
If the button says **Save draft** instead of **Save _as_ draft**, that means a draft already exists and you're editing it.
4. Edit the wallet pass in the same way as when [creating one](/docs/campaign/wallet-passes/creating-wallet-passes).
5. When you finish:
- To save the draft for later work or publishing, click **Save as draft**.
- To publish the new version to customers:
1. Click **Publish now**.
2. [Push the update to customers](#updating-a-wallet-pass-on-customer-devices).
### Restoring a wallet pass version
To restore and republish a wallet pass version:
1. Go to **Experience Hub > Wallet passes**.
2. Click the wallet pass you want to edit.
3. In the upper-right corner, click **Version history**.
4. In the panel that opens, click the version you want to restore.
**Result**: The version opens in the editor. You can review it.
5. Click **Save as draft**.
**Result**: The system creates a new draft version of the pass from the version you selected.
6. Edit the wallet pass in the same way as when [creating one](/docs/campaign/wallet-passes/creating-wallet-passes).
7. When you finish:
- To save the draft for later work or publishing, click **Save as draft**.
- To publish the new version to customers:
1. Click **Publish now**.
2. [Push the update to customers](#updating-a-wallet-pass-on-customer-devices).
## Updating a wallet pass on customer devices
Synerise doesn't monitor a [dynamic field](/docs/campaign/wallet-passes/creating-wallet-passes#defining-dynamic-fields)'s underlying data on its own, so nothing updates the pass until you trigger an update. Do so whenever that underlying data is likely to have changed for a cardholder:
- A dynamic field's value changed - for example, a pass field uses an expression to calculate a cardholder's points balance. When the cardholder installs the pass, the expression may resolve to `0` points. The cardholder then completes a transaction unrelated to the pass itself; afterward, the same expression resolves to `100` points. Until you trigger an update, the pass on the cardholder's device still shows `0` - the device has no way of knowing the underlying value changed.
- You manually edited a static field's value in the wallet pass template. That new value only reaches the pass once you trigger an update.
### Update methods
You can push an update to a pass that's already installed on a customer's device in the ways listed below. Neither method lets you set field values directly. Instead, triggering an update re-evaluates the pass's dynamic field values - see [Defining dynamic fields](/docs/campaign/wallet-passes/creating-wallet-passes#defining-dynamic-fields).
#### Calling the update endpoint directly
You can use the [`POST /wallets/update`](https://hub.synerise.com/api-reference/loyalty-and-engagement#tag/Wallet-passes/operation/updateWalletPassUsingPOST) endpoint.
#### Using the Update Wallet Pass node
No API key is needed - the node runs as part of the workflow. For the node's configuration, see [Update Wallet Pass node](/docs/automation/actions/synerise-integrations/update-wallet-pass).
- Add the [Update Wallet Pass](/docs/automation/actions/synerise-integrations/update-wallet-pass) node to a profile-oriented workflow in Synerise, so the update is triggered automatically as part of an automation - for example, as a step right after the event that recalculates the cardholder's balance.
### Consequences for end users
The customer receives a notification only if a value actually changed as a result of the update; if nothing changed, the update still succeeds but no notification is sent. This notification is generated natively by the Wallet app on the device, not by your own mobile app - the field's **update notification** text (see [Defining dynamic fields](/docs/campaign/wallet-passes/creating-wallet-passes#defining-dynamic-fields)) is the only part of its content you control.