Memo, Tag or Destination Tag: The Crypto Field You Must Not Skip

Pay school fees into a school's bank account without the student's name or registration number in the narration, and the bursary ends up with ₦250,000 and no idea whose it is. The money arrived. It just can't be matched to anyone without phone calls, receipts and a lot of patience.

Some cryptocurrencies have exactly the same problem, and the memo field is the narration.

Why some deposits need a memo

On most networks, every customer gets their own deposit address. When coins arrive at that address, the platform knows they're yours.

A few blockchains work differently. On the XRP Ledger and Stellar, for example, every address must keep a minimum balance of the coin just to exist, so giving each customer a separate address is costly. Instead, platforms use one shared address for many customers and give each person a memo or tag. The same approach is common for coins like TON and ATOM.

The address gets the coins to the right building. The memo gets them to the right flat.

What it's called on different coins

Wallets and exchanges don't agree on a name, which adds to the confusion:

Coin	What the field is usually called
XRP	Destination tag (a number)
Stellar (XLM)	Memo
TON	Comment or memo
Cosmos (ATOM)	Memo

A few other coins use the same idea. Whatever it's called, it does the same job.

Watch out for one word in particular: optional. Many send screens label the field "Memo (optional)", because the blockchain itself doesn't require it. But if the receiving platform gave you a memo, it's required by them, and leaving it out is the mistake this whole post is about.

Where people usually get caught

The memo mistake nearly always happens in one situation: moving a coin from one platform to another. Sending XRP from your own wallet to a friend's own wallet needs no tag. Sending it from one exchange to another almost always does, because the receiving exchange uses a shared address.

Halima learned this the slow way. Moving some XLM between two exchanges late one evening, Halima copied the address, skipped the box marked "Memo (optional)" and went to bed. By morning the explorer showed the transfer as complete, but the balance hadn't moved. Sorting it out took a support ticket, the TXID and several days of waiting. One extra paste would have avoided all of it.

What happens if you leave it out

The transfer itself succeeds. On a block explorer it shows as complete, sent to the platform's address. But the platform's system can't tell whose deposit it is, so your balance doesn't change.

From there, it depends on the platform:

• Many can investigate if you contact support with proof that you sent it. That usually means a manual check, which can take days, and some platforms charge a fee for it.
• Some can't or won't recover deposits without a memo at all.
• A few platforms set their XRP addresses to reject payments that arrive without a tag. In that case, the transfer fails and your coins stay with you. Don't count on it.

A wrong memo can be worse than a missing one. One wrong digit could point the deposit at a different customer's account, or at nobody's.

The two rules

1. Copy the memo exactly as the receiving app shows it

Every time, from the deposit screen, not from memory or an old screenshot. Paste it rather than typing it, then check every digit. If the platform ever shows you a different memo, use the new one.

2. If there's no memo, don't invent one

When the receiving app shows an address and no memo, leave the memo field empty. Don't fill it with your name, your phone number or "payment for rent". At best it's ignored. At worst it confuses the receiving platform's records and delays your deposit.

Bitcoin, and USDT on TRON or BNB Smart Chain, don't use memos for ordinary deposits, so when you send those you normally won't see one. If the deposit screen doesn't show it, it isn't needed.

A checklist before you press send

1. Open the deposit screen in the app you're sending to. For KWIQ, that's the coin's wallet in the app.
2. Copy the address and note the network shown with it.
3. If a memo or tag is shown, copy that too. It goes in the memo field, never added to the end of the address.
4. In the sending app, choose the same coin and the same network, then paste the address and the memo into their own fields.
5. Check the first and last few characters of the address and every digit of the memo.
6. For your first transfer, send a small amount and make sure it's credited before sending the rest.
7. Keep the TXID until the deposit shows up.

If someone is paying you, such as a client abroad, send the address, the network and the memo together in one message, and ask them to copy all three.

Forgot it? What to do now

1. Don't send again hoping the second one will fix the first.
2. Get the TXID from your sending app and check it on an explorer. Our guide to using a blockchain explorer shows you how.
3. Contact the receiving platform's support with the coin, amount, TXID, sending address, time and the memo you should have used. For deposits to KWIQ, reach our 24/7 support through live chat or at admin@kwiq.app.
4. Ignore anyone who messages you offering to recover it. Strangers who promise to get lost crypto back for a fee are running a scam; read about crypto recovery scams.

The same calm approach works for the closely related mistake of sending on the wrong network.

Check before you send

Before you move a coin you haven't sent to KWIQ before, see how to check which coins and networks KWIQ accepts. Then download the KWIQ app, open the coin's wallet and copy exactly what you see there, nothing more and nothing less.