I have income reported in my T4A form in Turbo Tax. Why is it not displayed in the Total income page in Turbo Tax?

You may have you filled out the self employment income with the same amount if you haven't already done so.

Some income reported on a T4a is not taxable. A common example is Box 105 “Full-time scholarship: also have T2202A with months in Box C” or “Elementary/secondary student scholarships, grants, etc: not taxable”

https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-re...