Gram Transfers on TON: Why Comments Matter
Setting up a TON wallet takes only two minutes, but trouble often starts afterwards. The transfer is visible on the network and marked as successful in the explorer, yet nothing arrives in the exchange account. In almost every case, a single line called the 'comment' or 'memo' is missing.
This article explains how to set up transfers on The Open Network so that they actually land, how to read transactions with Tonviewer, and what changes in practice after the rename from Toncoin to Gram.
TON itself is no longer a niche project. With 325 validators securing the chain, over 182 million contracts running, and four million transfers settled every day, it's a busy network with its own rules. Anyone moving money here must follow these rules, which differ from those on Ethereum or other networks.
The most common problem is when Grams sent to an exchange don't appear in the customer account. The reason often lies in the practice of large trading venues using pooled addresses for all customers. Instead of giving each user their own address, they operate a single pool, and what belongs to whom is decided by a short comment or memo.
To send Grams successfully, users need a wallet that offers them a comment field. Not every wallet puts it in the same place, and some hide it behind an inconspicuous toggle. Tonkeeper, MyTonWallet, and the self-custody wallet inside the messenger are examples of wallets that offer native support for TON.
When sending Grams to an exchange, users must fill out a comment field with a string of digits and letters, usually matching what is shown on the exchange's deposit page. The rules for comments are strict: typing them out incorrectly can make them worthless, capitalization counts, and they should only be used when sending to an exchange.
If everything goes wrong, users can try using a block explorer like Tonviewer or Tonscan to read their transactions line by line. These tools show the status of each transfer, the comment or memo, the counterparty address, and the fee withheld by the network.