Tags are required for a certain types of token deposits such as XRP:
The tag is necessary for us to identify the transaction. Please remember to include it when you are initiating the deposit from other platforms or wallets. Otherwise, the transaction may not be credited.
A reminder will pop up if it is your first attempt to deposit tokens which requires a tag.
For the tokens without the tag displayed on the deposit page, it is not required for the transfer.
The same case applies for withdrawals. If you are withdrawing tokens to the platform which requires a tag, please remember to include it when initiating the transfer.
You may enter anything in this field to help you identify the transfer.
A step-by-step guide to purchasing and selling crypto on OKX,
Step 1: Log in to your OKX account
Before you can start buying or selling cryptocurrency on OKX, you must first log in to your OKX account. If you do not yet have an account, click Sign up and complete the registration process.
Step 2: Select Buy/Sell
Once you have logged in to your OKX account, click Buy Crypto in the upper left-hand corner of the screen to get started.
Step 3: Select your purchasing method
The next step is to choose how you would like to buy or sell . There are two primary options on OKX: Express and P2P trade.
Finally, simply confirm your transaction details.