Do you remember Automatically import quotes of funds - #11 by Tanguy ?
Why don’t you try to use fundsquare - you know how to use it!
Ok, robeco
https://www.robeco.com/api/funds/fundPriceHistory?locale=en-int&instrumentId=7345866&startDate=2022-03-22T00:00:00.000Z
$.prices[*].valueDate
$.prices[*].price
How to find that? It is the same step by step as described in Automatically import quotes of funds - #14 by ProgFriese