What is the general recommendation for having multiple network calls from the same lambda

[protyay]

We have a use-case, wherein we are trying to include all the network calls inside the same lambda. I just wanted to understand if there's a general guidance related to this practice ?
Also, how does the retry mechanism look like, if we have all of these network calls residing in the same lambda ? Can we separately retry a certain network call via aws-java-sdk ?