# View transaction details

Get information about a specific transaction.

## Search for a transaction

If you know a transaction's merchant or system transaction ID, and know the timeframe within which it occurred, you can search for a specific transaction using the filters.

1. In the Unity Portal, go to **Report & search > Report**.
2. Set a timezone and time period.
3. Choose an intent and funding type.
4. Enter the merchant transaction ID or system transaction ID.
5. Click **Apply**.


The transaction is displayed in the *Search results* section.

Search results
## View transaction details

In the *Search results*, click on the transaction you want to view details for. The details pane opens on the right side of your screen.

Search results
The same sections are displayed for all transactions, regardless of intent. However, not all properties or fields will apply to every transaction, so some fields may be empty.

Transaction details include:

* The date and time when the transaction occurred
* The system transaction ID
* Transaction properties
* Entity properties
* Shopper details and address
* BIN properties
* Card properties
* 3DS and PSD2 properties
* Provider response properties
* In-store properties


Sensitive data is hidden by default. To view it, you'll need to click the eye icon () under *Details*.

Note that the `ECI` fields in the *3DS and PSD2 properties* and *Provider response properties* might contain different values. This is because the latter is assigned by the provider and indicates whether or not there is a liability shift. For example, the Issuer might decide to downgrade a transaction ( `07`).

### Modify a transaction

If you have the Transaction Operator role, you can modify a transaction directly from the transaction details.

If the transaction's intent is `Authorisation` or `Estimated authorisation` , you can void the transaction by clicking the **Void** button in the bottom left.

If the transaction's intent is `Purchase`, you can refund the transaction. Successfully authorised purchases go straight to capture, so they can't be voided. To refund a transaction, click the **Refund** button.

Any modification creates an additional transaction record that is linked to the initial transaction. See [View linked transactions](#view-linked-transactions)  for more information.

### View linked transactions

If the transaction you're viewing is an initial transaction with subsequent transactions, you'll see an additional *Subsequent transactions* section in the details pane. From here, you can click **View details** to view the details of the subsequent transactions.

View linked transactions
View linked transactions
If the transaction is a subsequent transaction, you can click **Parent transaction** in the top right to view the initial transaction.

Subsequent transaction