<aside> ⚠️ Crosschain feature is to send a token from Bifrost-Polkadot or Bifrost-Kusama into another different network, and vice-versa.

It can be used to: -Cross-chain any tokens on any supported chains

• Cross-chain DOT or KSM between Bifrost and the relay chain (DOT or KSM can only be withdrawn to exchanges from the relay chain)

It doesn't have to be used to:

• Withdraw any tokens on exchanges, crosschain is NOT supported by exchanges.
• Send tokens on another Bifrost account (yours, a friend). Use the Transfer feature for this.

</aside>

How to send KSM/DOT to an exchange from Bifrost

<aside> 💡 Just remember 1 simple rule: DOT and KSM always have to be on the relay chain to be transfered from/to exchanges

</aside>

So the action is simple, **cross-chain out to the relay-chain !!**

Once on a relay-chain, and only from the relay-chain, transfer the KSM/DOT to an exchange address.

• When in doubt: consult your exchange.
• Most exchanges ask the user to provide the Kusama/Polkadot Account Address (on the Kusama/Polkadot network) where you want the KSM/DOT tokens to be sent.
• Kusama addresses always begin with a capital letter, Polkadot addresses always start with a 1: Ex: KSM address: Cb2QccEAM38pjwmcHHTTuTukUobTHwhakKH4kBo4k8Vur8o DOT address: 16PicRbY5KkHP7oAehmKEfssM5h4t7sbVhGprqVxV5uV3Yd6

Cross IN to Bifrost from other chains

1. Enter app.bifrost.io and click on "Cross chain" on the left main navigation to enter the cross chain page

Cross in

1. Click the chain name under "From" at the top left of the panel and select the source chain you need to cross in assets in the pop-up window

Possible source chains on Bifrost-Polkadot