> For the complete documentation index, see [llms.txt](https://docs.payments.thalescloud.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payments.thalescloud.io/nfc-wallet-sdk-android/additional-features/handle-visa-multiple-aids.md).

# Handle Visa multiple AIDs

## Overview

Use the NFC Wallet SDK to manage multiple Visa AIDs on a digital card.

You can:

* Detect whether a digital card exposes multiple AIDs.
* Read the AID list (sorted by priority).
* Update AID priority.
* Lock or unlock an AID.

## SDK integration

### Detect multiple AIDs

Use `DigitalizedCard.isMultiAids()`.

### Read AIDs

Use `DigitalizedCard.getAllAids()` to return a list of `Aid` objects.

The list is sorted by priority (highest priority first).

Each `Aid` includes:

* `Aid.getAid()`: Returns the AID as a `String`.
* `Aid.getLabel()`: Returns the label as a `String`.
* `Aid.getLockStatus()`: Returns `true` when the AID is locked.
* `Aid.setLockStatus(boolean locked)`: Locks or unlocks the AID.

{% hint style="info" %}
A terminal returns status word `6A81` when it sends **SELECT** to a locked AID.
{% endhint %}

### Update priority and lock status

To update priority (and optionally lock status), rebuild a list containing **all AIDs** in the desired priority order. Then call `DigitalizedCard.updateAidList(...)`.

```java
// Get a reference to a digital card using its tokenId.
DigitalizedCard digitalizedCard = DigitalizedCardManager.getDigitalizedCard(tokenId);

// Check whether this digital card exposes multiple AIDs.
if (digitalizedCard.isMultiAids()) {

    // Read all AIDs. The list is sorted by priority (highest first).
    List<Aid> aids = digitalizedCard.getAllAids();

    // Lock the highest-priority AID.
    aids.get(0).setLockStatus(true);

    // Rebuild the list in the desired priority order.
    // IMPORTANT: The updated list must contain all AIDs.
    List<Aid> updatedAids = new ArrayList<>();
    updatedAids.add(aids.get(1));
    updatedAids.add(aids.get(0));
    // Add remaining AIDs in the required order.

    // Apply both the new priority and lock status changes.
    digitalizedCard.updateAidList(updatedAids);
}
```


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