Send primary mode

As we know, Binance Connect has a wide range of application scenarios. In addition to on-ramp (buy) and off-ramp (sell), Binance Connect can also be used as a crypto payment channel/tool, that is, users can directly use the crypto balance in their Binance wallet to make third-party payments. This is the "send primary mode" we launched.

In send primary mode, the product process and user flow are different from the normal on-ramp (buy), as follows:

• Send (transfer) crypto will be promoted as the first priority;
• Buy crypto related features will be downgraded and hidden, users don't need to buy crypto, they only need to send (transfer) crypto from their Binance wallet;
• Only in one case, when the crypto balance in user's Binance wallet is insufficient, the flow will return back to the buy crypto process, to avoid users being blocked here;

How to integrate send primary mode

If you are going to integrate send primary mode, please follow these instructions:

1. Contact Binance Connect team to enable this feature for you (it's disabled by default);
2. Pass ”SEND_PRIMARY": true in the customization parameter of the pre-order API. Please refer to Customization.

Typical Send Flow

1. Initiate Send & Fetch Info

   • The user initiates a crypto transfer from Binance on the partner's frontend.
   • The partner's backend requests the list of supported crypto networks and trading pairs from Binance Connect.
   • This information is then relayed to the partner's frontend to be displayed to the user.

2. Confirm & Create Pre-order

   • The user confirms the details on the partner's frontend.
   • The partner's backend sends a pre-order request to Binance Connect.
   • Binance Connect returns a redirectUrl in the response.

3. Redirect to Binance

   • The partner's frontend redirects the user to the Binance App/website using the redirectUrl.

4. Complete Flow on Binance

   • The user completes the send process on the Binance platform.
   • Note: If the user's balance is insufficient, the flow will include a buy step before sending.

5. Webhook Notification

   • Binance Connect sends a webhook notification to the partner's backend about the order status update.

6. Query Order Status

   • The partner's backend can then query the order details from Binance Connect to get the final status of the transaction.

Diagram