I have a B2B SaaS web app. In most cases my clients are small or medium sized organizations and we have annual contracts. In other words, they sign the contract, according to which they are 'locked in' with my service for 12 months.
Question: Can I have customized ToS for each client (they are logged in, so I know who they are) and avoid sending the contract at all? In ToS I would write the monthly price, start date, duration of the contract, etc.
Is it legally binding?
Update: I'm in the US