The article provides a comprehensive guide on migrating data from MongoDB to Couchbase, focusing on exporting data from MongoDB's BSON format, transforming it to suit Couchbase's JSON format, and importing it into Couchbase using its Eventing service for real-time transformation. The process involves using MongoDB Compass to export collections, configuring various Couchbase buckets for incoming, transformed, and error data, and deploying a JavaScript-based Eventing function to handle data transformation. The guide highlights the differences between MongoDB's Extended JSON and Couchbase's JSON, demonstrating how specific data types like ObjectId and Date are transformed during the migration. It also details using the cbimport utility for data import and provides instructions for setting up the necessary Couchbase infrastructure. The article concludes with suggestions for further exploration of Couchbase features and resources for additional learning and integration.