Getting started

@DOC111 I'm sorry to hear that you've had this experience. 

The "Source of Box 48" box in TurboTax Online is there to tell the program which Self-Employment form you need to use. It's not a box that's on the actual T4A slip from the CRA. When you Auto-Fill your return, nothing in that box is automatically selected, because Auto-Fill only fills in what is on the actual slip. This is one of the reasons why we recommend checking your slips after you Auto-Fill, because there are other t-slip pages in TurboTax that have similar options. Also, sometimes Auto-Fill duplicates slips, or what the CRA sends over is incorrect. 

As to why the software didn't warn you to select an option for "Source of Box 48" - it does if you are on the T4A page and then try to move forward without making a selection.