How to not get "duplicate key" when importing new prices?

Price change:
a) set “Valid upto” to 2023-12-31 in all prices
b) now I want to import new prices with “Valid from” set to 2024-01-01

The import tool now gives me “Duplicate Key” errors (which seems logical because it is the same ID).

Do I just omit column ID? Will the (new) items with the new prices be found by subscriptions and auto repeats?