Other tracking software providers often just use the API balance of an exchange to show the current balance (like we do it on the Exchange Balance/API Live Data page). We only use this page to compare the imported balance vs. the real "live" balance, as CoinTracking works differently:
In CoinTracking, balances are calculated and reported based on the transactions that have actually been imported into the system.
There is the possibility that you have to correct your coin amounts by adding deposits or withdrawals:
Go to the "Exchange Balance/API Live Data" page and compare it with the "Balance by Exchange" page.
You can then determine the amounts that are missing in order to get correct balances.
In order to fix your missing transactions, check out the Missing Transactions Report.
Deposits and withdrawals are mandatory, e.g. for the Depot/Lot separation.
If you have no longer access to some transactions, you can find some more info here: Exchange closed or missing data due to wallet inaccessibility