@awmhove, you did not post the screen shots I requested. When moderators ask for screen shots, it is for a specific purpose. Other information is often a distraction. Much of what you posted is not helpful. So please post the screen shots I requested in post #11.
Nevertheless, we can learn a few things from this extra information:
- You posted a K 50.00 payment from your Cash Box account to Accounts receivable. Why did you do this? From an accounting perspective, this transaction tells Manager that you gave cash to your customer, Anthony, expecting Anthony to pay it back. Please explain what this transaction actually was and post a screen shot of the Edit screen for that payment.
- You may have set up the Summary page for this business for cash basis accounting. When you do that, income is not recognized until you receive money against sales invoices from the customer. Click Edit on the Summary page and uncheck the box to change back to accrual basis accounting:

If you don’t want to use accrual basis accounting, don’t expect Accounts receivable to be affected by sales invoices. From the little bit of the Summary page peeking out from beneath the Accounts receivable drill-down, it appears the 50.00 balance in Accounts receivable shows only because of the highly unusual payment mentioned above, not because of any sales invoice.