Unable to view coinbase transactions on blockchain.com
Since a Coinbase account is custodial, Coinbase can move money from internal account to internal account without recording it on the blockchain. These sort of internal transactions between Coinbase and its customers are not normal Bitcoin transactions. So far as the Bitcoin network is concerned, Coinbase own the money not you.
I'm not sure what a Coinbase account &quot;BTC wallet address&quot; would be, but I guess either it isn't a valid Bitcoin address (but instead something proprietary and internal to Coinbase) or it was mis-typed or just hasn't been used yet for any on-chain transactions.