Describe the problem: I download the wallets or and data showed up for them but how can I confirm that all the data was downloaded. Can I assume that if data came over it captured it all?
Which exchange/wallet is this regarding?
How did you import data into this wallet?
What have you tried to fix this so far?
Hi @Colin1895,
Welcome to the Discuss community and thank you for posting about this, man!
Koinly will automatically tell you if there are any missing transactions/purchase histories for each wallet. When you click on any of your wallets in your account (from the ‘wallet’ page) you’ll see a screen that shows the option ‘troubleshoot’ in a yellow box.
You’ll see this option if you select to sync or manually import files into the wallet. When you click the troubleshoot button, Koinly will have a page open up to show exactly which transactions are missing, or if there are any API limitations.
We also have these guides to help if you are noticing that the transaction count in your exchange account isn’t lining up with what is in your Koinly account, you can reference these two help articles to resolve these.
How to find missing transactions.
Missing purchase histories for XYZ.
Additionally, we don’t want you to take too much of your time if these measures aren’t helping. If you have any questions or issues, please connect with our support team so we can investigate what’s happening in your wallets.
Thank you for shining a light on this, Colin. 
Have an awesome day!