Bitcoin Forum

I sent bch from bitcoin.com app to btc address via coinbase app. I made a huge mistake. Can I get my bch back and how? Please help.  REWARD

Do you have the private key of the address?
If so then it's easy, just import it in a wallet like Electrum

The receiving address is from Coinbase? You need to send them a ticket and see if they can do something about it.

"If you have sent BCH to an external address that was used only for BTC, you will need to obtain the private keys for that address and import them into a BCH wallet in order to access the funds stored there. Coinbase does not support the importing of private keys."

https://help.coinbase.com/en/coinbase/getting-started/general-crypto-education/bitcoin-cash-faq
https://help.coinbase.com/en/more/coinbase-wallet/sending-and-receiving/what-happens-if-i-use-the-wrong-coinbase-wallet-address

What particular Coinbase app? "Coinbase Wallet" or "Coinbase"?
Because the latter is a custodial wallet plus exchange and the former is a non-custodial wallet.

If Coinbase, then do the instructions above about contacting their support.

If it's Coinbase Wallet, you can restore by importing your Recovery Phrase to Electron Cash (https://electroncash.org/ (https://electroncash.org/)) or other clients that supports BIP39.
That's the 12-words that you need to take note during wallet creation;
for Electron, use the options, "Standard->I already have a seed->paste it->change the derivation path into m/44'/0'/0'  "
Finish creating the wallet, wait for the block headers download in the background and the wallet's balance will be updated.