SOLVED - Different Collapsible row items for product A and B

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SOLVED

I want to add for Product A specific descriptions and for product B other description. But as soon as i edit on the product page the collapsable row item it changes for all product's. I already created for each product the matching metafields. But as soon as i paste the specific metafield in the collapsible row field for product A, change is also made on product B..

How do i solve this issue ?