Survival Analysis with longitudinal data

[EtienneT]

I have longitudinal data where I have one data point per month per client. Some of the co-variates change overtime, for example usage data of a product. Usually from what I have seen, survival analysis models only use one data point per client/patient (the more recent). If I want to use all my historical data, do I have to use the time varying model for this?

Thanks!