How can I import refunds to migrated orders on Shopify Plus?

Hi all,

we have switched from prestashop to Shopify PLUS. Importing old orders can be done (still we didn’t do it) by app, but I did not find any solution for importing refunds to imported orders. Maybe it can be done through API?
I have to split old data to orders with refunds to keep analytics working

Shopify app’s related to prestashop can migrate your product and combination data from Prestashop to Shopify. You need choose the best app for Prestashop migration.

Prestify: Prestashop Migration:

Fully automated migration, Hassle free automated migration with just one click. Simple, Secure and complete migration of Prestashop to Shopify. Source store not affected. No loss on your business whatsoever. You keep the store running until we make your Shopify ready. Also Free unlimited re-migration at no extra cost. Migrate your store once or hundred times, but we charge only once.

Simply, Automated, Effortless and 100% Secure and Free up to 30 Products, 10 orders and 10 customers. Additional products start at $19

LitExtension Store Migration:

Fast and easy Migration setup only takes a few minutes with 3 simple steps. No technical skills required. Wizard instruction and live chat along your way.

Free migration for 20 entities.

Cart2Cart Store Migration App:

Migrate all store data in hours and save a few days or weeks to adjust your new store appearance and focus on business objectives. You need only a few minutes to launch your migration with Cart2Cart.

The price depends on the number of entities migrated, starts from $29