Describe the problem:
Missing purchase history.
I purchased BAT on 2020-05-30 13:03:24 UTC
I exchanged BAT on 2021-10-24 10:40:39 UTC
Which exchange/wallet is this regarding?
Coinbase
and
Coinbase pro
How did you import data into this wallet?
Coinbase (API)
Coinbase Pro (CSV)
What have you tried to fix this so far?
I’ve tried linking the two together, but I haven’t figured that one out just yet.
Thanks for your message. 
To fix the Missing Purchase History errors I would suggest working through the steps in the article below:
https://support.koinly.io/en/articles/9490037-missing-purchase-history-for-xyz
This article will also help you track down the missing purchases:
https://support.koinly.io/en/articles/9490041-some-transactions-are-missing
If the error persists after working through the above, you can open a ticket with us by clicking the chat box from within your Koinly account. 