Hello Usman317
You would need to devise an approach for your migration. There are various migration strategies like Rehost, refactor, rearchitect, replatform, retire, etc. So the migration will entirely fit in one bucket. It would depend on what application are dependencies are you going to migrate. First you need to perform risk analysis and dependency matrix of the workloads that you are planning to migrate to cloud. And you should start with the least risk ones first. Perform testing after migration and monitor it for few days.
In case if you ae migration the entire application then you should first figure out how you would migrate the dependencies first before the actual application migration. Hope this helps.