How to import Hidden meta data

Because of the new version of Woocommerce, data of most of my website plugin have been refactored based on the core CRUD pattern (WC 3.0+ only).

To import my products in bulk I was using WC – Product Bundles & Wp All Import and figure out a solution using the Custom Field created by the plugin called “_bundle_data” and generating it by a function from the database export.

The problem: This field is not used anymore by Product bundles and I found the new architecture of my product in the following Hidden meta data: “_bundled_items_db_data”. I’m struggling to try to import directly in this hidden field in my “CUSTOM FIELD” tab with WPAI but it looks like not working.

My data looks like: {"50":{"bundled_item_id":50,"product_id":190298,"bundle_id":190368,"menu_order":0,"meta_data":{"quantity_min":1,"quantity_max":1,"priced_individually":"yes","shipped_individually":"no","override_title":"no","title":"","override_description":"no","description":"","optional":"no","hide_thumbnail":"yes","discount":"","override_variations":"yes","override_default_variation_attributes":"yes","allowed_variations":[190300],"default_variation_attributes":{"pa_colour":"beige","pa_size":"36","pa_brand":""},"single_product_visibility":"visible","cart_visibility":"visible","order_visibility":"visible","single_product_price_visibility":"visible","cart_price_visibility":"visible","order_price_visibility":"visible","hide_filtered_variations":"no","stock_status":"in_stock","max_stock":1}},"51":{"bundled_item_id":51,"product_id":190298,"bundle_id":190368,"menu_order":1,"meta_data":{"quantity_min":1,"quantity_max":1,"priced_individually":"yes","shipped_individually":"no","override_title":"no","title":"","override_description":"yes","description":"","optional":"no","hide_thumbnail":"yes","discount":"","override_variations":"yes","override_default_variation_attributes":"yes","allowed_variations":[190299],"default_variation_attributes":{"pa_colour":"beige","pa_size":"37","pa_brand":""},"single_product_visibility":"visible","cart_visibility":"visible","order_visibility":"visible","single_product_price_visibility":"visible","cart_price_visibility":"visible","order_price_visibility":"visible","hide_filtered_variations":"no","stock_status":"in_stock","max_stock":1}},"52":{"bundled_item_id":52,"product_id":190298,"bundle_id":190368,"menu_order":2,"meta_data":{"quantity_min":2,"quantity_max":2,"priced_individually":"yes","shipped_individually":"no","override_title":"no","title":"","override_description":"no","description":"","optional":"no","hide_thumbnail":"yes","discount":"","override_variations":"yes","override_default_variation_attributes":"yes","allowed_variations":[190301],"default_variation_attributes":{"pa_colour":"beige","pa_size":"38","pa_brand":""},"single_product_visibility":"visible","cart_visibility":"visible","order_visibility":"visible","single_product_price_visibility":"visible","cart_price_visibility":"visible","order_price_visibility":"visible","hide_filtered_variations":"no","stock_status":"in_stock","max_stock":2}}}

Any idea if Woocommerce 3.0, WP All Import and Product Bundle are still working together??

Cheers