CSV import to ItemCollection<T> property

Hi all

We have a product model that contains an ItemCollection<T> property that editors can use to make multiple selection for that property.

We are trying to import a list of products where we need to apply multiple selection for this property.

What I seem to have issue with is to figure out the correct format for the field in CSV file that should fill out the property.

I hope that someone has tried this and has an answer.

Best regards

Miroslav

Commerce version: 11.4.1.0