Our sales are integrated with Shopify and thus the sales deposit account is set as cash and cash equivalent by default how to change that to a sub-account i created?

I'm glad to hear from you today, noora-glowgetter.

You can change the sales deposit default account through the Payment configuration settings when mapping your transactions from Shopify to QuickBooks Online. See the sample screenshot below.

You can always visit our Help Articles if you have other questions about QuickBooks Online. This will provide you links and related resources to help you with your future task.

You're always welcome to post any questions you have in this space. I'll be here if you need assistance with anything else. Have a great day!