Acquisition-related expenses : PagerDuty views acquisition-related expenses, such as transaction costs, acquisition-related retention payments, and acquisition-related asset impairment, as events that are not necessarily reflective of operational performance during a period. In particular, PagerDuty believes the consideration of measures that exclude such expenses can assist in the comparison of operational performance in different periods which may or may not include such expenses. Amortization of debt issuance costs : The imputed interest rates of the Company's convertible senior notes (the "2025 Notes" and the "2028 Notes" or, collectively, the "Notes") was approximately 1.91% for the 2025 Notes and 2.13% for the 2028 Notes. This is a result of the debt issuance costs, which reduce the carrying value of the convertible debt instruments. The debt issuance costs are amortized as interest expense.