Return on Advertising spend $($ROAS$)$ cannot be calculated within an AdWords account unless:

Select one:

a$.$

the advertiser has a six month history of AdWords advertising

b$.$

conversion tracking is set up properly in analytics $($or Tag Manager$)$ and connected to the AdWords account

c$.$

the advertiser spends a minimum of $$250$ per week on AdWords

d$.$

the advertiser has achieved at least $50$ conversions within the past month