How do you write an SLO for a service when higher reliability is needed only during special events?

Special events such as BFCM (Black Friday / Cyber Monday).

Answer

Hi Gustavo, welcome to DevOps SE. It's going to be a little hard to answer your question as it is; is there any further information you can provide to help us understand what you're trying to achieve? See https://devops.stackexchange.com/help/how-to-ask for some tips; in particular, knowing what you've come up with so far will help us more specifically hone in on what you're after. Hi Tim, thanks for the reference. I'm trying to establish how SREs in other companies (other than mine/Google) approach things such as https://cloud.google.com/blog/products/management-tools/tune-up-your-sli-metrics-cre-life-lessons.