# Reversal Transaction Query

This functionality is intended to return data from a reversal transaction and its respective
transaction reversed from the reversal keys.

The key consists of the fields:
- **SitCod**
- **Transaction date**
- **NSU SiTef**
- **SiTef Store Code**
- **Customer Code** (only on GW/Express platform)

This key must be sent as a parameter in the request URL (*QueryString*).

## Call Details

- **Method:** `GET`
- **URL:** `Basic URL + reversal/search?codsit=000&datatrn=yyyymmdd&nsusitef=00000000&codlojasitef=00000000`
- **Answer:** List of Reversal and Reversal Transactions (see [List of Reversal and Reversal Transactions
Reversals] (returns-requests.md#list-of-transactions-reversals-and-reversed))
- **Description of URL parameters:**

|Field | Description | Type | Size | Format | Required |
| --- | --- | --- | :---: | --- | :---: |
| **codsit** | SiTef Network Code | Numeric | 1-4 | - | Yes |
| **datatrn** | Transaction date | Numeric | 8 | YYYYMMDD | Yes |
| **nsusitef** | Transaction's Sitef's NSU | Numeric | **6** | - | Yes |
| **codlojasitef** | Transaction SiTef store code | Numeric | 8 | - | No* |
| **codlojatronco** | Sub-acquirer store code | alphanumeric | 8 | - | No* |
| **codigo_cliente** | Customer Code | Numeric | **1-8** | - | Yes** |

>\* It is necessary to inform **codlojasitef** or **codlojatronco**

>\*\* **custmer_code** is required when used on SiTef GW/Express platform. Not used on SiTef- clients
Conciliation.
>
>By default the Reversal Queries are ignored and are not initialized together with the
>application. If you want to enable this functionality, an additional configuration must be done
>in the `pending-ws.yml` file:
>```
>ignore:
> reversal: false
>```