Hey @bharathiraja

Here are some links that will help you migrate the data please make sure you do this safely
but i would suggest if possible to integrate instead of migrate outsystems have buildin integration builder for salesforce Salesforce integration Salesforce Integration Guide

Here are the links to help migrate
https://success.outsystems.com/documentation/how_to_guides/data/data_migration_from_production_to_non_production_environment/introduction_to_data_migration/

https://success.outsystems.com/documentation/how_to_guides/data/data_migration_from_production_to_non_production_environment/how_to_migrate_data/

 Let me know if that solves your problem

Regards,
Kshitij

The best option is the one mentioned above of using Integration Studio, if you can keep Salesforce around.

If your client is quitting salesforce and wants that data into OutSystems, so if you have to resort to manually import data into OutSystems tables (from whatever source), you can also use the DMM (Data Migration Manager) component on the Forge to help you (Forge Link: https://www.outsystems.com/forge/component-reviews/2812 ). The component abstracts the building of scripts, takes care of stuff like circular references, self references, and allows even the import of serialized BLOLB fields.

The component is subscription based, but it's on a Freemium model and the data import feature is free to use. You should start with this article on the feature here ( https://www.infosistema.com/data-import-into-outsystems/ ) and after also see a video/webinar on how to use in the DMM Foundation online free course, in module 3 (you can enroll in the free course in this link to receive the access codes: https://www.infosistema.com/data-migration-manager/dmm-foundation-online-course/ ). There's also the product's online manual ( https://sites.google.com/infosistema.com/infosistemadmmusermanual ) which explains how to use each feature, see that after the above links.

If you require our support (we make the component) to use it, then you'll need to acquire a paid subscription. But you should try it out for free following the above information.

Thanks, best of luck!