Apparently Coinbase has difficulty with basic comparisons such as "greater than", "less than", "equal to", and "at least". It sure doesn't give me confidence in their competence when it comes to handling my funds.
Specifically, I sent a test transaction of
0.01 BTC to fund a Coinbase Exchange account that I set up. Their documentation specifically states:
The minimum deposit amount is 0.01 BTC. Amounts less than this will remain in your regular Coinbase account.
(Red and underline emphasis added by me, bold emphasis is in the original documentation)
The amount did not make it to the Coinbase Exchange account. Instead I received an email with the following text:
A bitcoin transaction to your exchange deposit address for 0.01000000 BTC has been received, but could not be transferred to Coinbase Exchange.
The error was: Insufficient funds.
Please note that, in order for transactions to be transferred to Coinbase Exchange, they must be at least 0.01 BTC in size.
(bold emphasis added by me)
The last I checked, 0.01000000 BTC is not "less than" 0.01 BTC. Furthermore, it certainly is "at least" 0.01 BTC.
I've sent this same message to coinbase support. Hopefully, they'll get their act together.