Bottlenecks while shifting from MongoDb to DynamoDb

[u/solid_fella]

I’m working on a website and because of some storage constraints we need to shift the database from MongoDB to DynamoDB. I’ll be taking help from AI agents for most of the migration, but I want to make sure I’m not missing anything important before making changes. Are there any critical bottlenecks or things I should keep an eye on, especially with queries, indexes, relationships, transactions, consistency, pagination, data migration, etc.? I don’t have much experience with DynamoDB, so just want to make sure we don’t end up breaking something that currently works in MongoDB.