Can I create journal entries?

You certainly can, though there are currently a few cases where you can't use journal entries to modify certain accounts.

For example, for connected marketplaces/platforms like Amazon, eBay, Shopify, Walmart and Etsy, we do not allow journal entries to hit those accounts. The reason for this is that we pull data directly from those accounts and want to avoid letting customers

To learn more about how and where to record journal entries, just check out our blog post announcing the feature: https://sellerledger.com/balance-sheet-and-journal-entries/