Level 2

End-of-year deductions and what to do if they are categorized in the next year?

I bought some goods at the end of 2018, but they didn't show up in my Quickbooks Self-employed until 2019. Do they count toward my 2018 taxes? I purposely bought these goods at the end of 2018 so they would count as 2018 deductions, but they are labeled as 2019 purchases. Do I need to tweak some things for my taxes, or can someone help me out? Thank you!