# Authorize Sub-Account to approve transactions
1. In CoinSend client page, click on the Authorize button of required client device.
2. Click on the dropdown box of Data approval to select desired sub-account by clicking on the checkbox beside the sub-account, repeat the same for Execute approval permission. Data approval permission refers to first level approval and Execution approval permission refers to second level approval. Click "Submit" button to proceed.
3. Please launch your CoinSign App and click on the "Scan" button to scan the QR code provided in the sub-account authorization screen.
4. After reviewing the authorization data, click the "Sign" button and input the client password and Google authorization code, then click the "Sign" button.
5. Once signing is completed, the authorization data will be forwarded to CoinSend center Wallet for processing. If it is successful, the Authorization status of the CoinSend client will show "Successful".
{% hint style="info" %}
In the event of failure, please retry and ensure that you have inserted the correct CoinSend client password and Google authorization code.
{% endhint %}
6. If the "Approval Restriction" is enabled on the client device (input of client Google Authorization Code is required), the same approver account of this client device cannot execute both Data approval and Execute approval for the same transaction (can only execute either Data or Execute approval).
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