How to update CMS collection

I already have a cms collection and I want to update it. The original CSV has rows 1-10 … but we added rows 11-50 in the CSV and want to update the collection with rows 11-50.

How do we do that ensuring the original collection stays the same but adds rows 11-50.

Tech supports doesn’t know the answer!!!

What is missing during the import process is the option to “replace” or “add” items.
Since it is missing, when it imports, all items are duplicated.

This is such a basic feature - why is it missing and haven’t been fixed after all this time?

[wrong info - see Noah’s reply]

We already support this behaviour:

  • Export your current collection
  • Add your new items in the CSV
  • Import that CSV back into your CMS Collection

When importing your file:

  • If the existing collection already has items with the same IDs, you can choose to replace the IDs or skip importing items that have matching IDs.
  • If the existing collection does not have items with the same IDs, the rows are added as new items that use the IDs listed in your CSV file.