Not getting any recommendations using algorithm top by analytics metric

[Shaini_Gupta]

We are trying to implement target recommendation using Algorithm type popularity based & algorithm top by Analytics metric.We have done web sdk implementation and also passing s.products as mentioned in documentation for using analytics as a behavioural data source. Still we are not getting any recommendation results.Has someone worked on this previously are there any other pre requisties because of which we are not getting any results for this.