Customer Metafields - Import via .csv?

[Crhage]

I have a large group of customers that should have a specific set of metafields populated on their profile. These metafields are used for some customer segmentation.

My question is whether I can update their metafields through a .csv upload without completely overwriting their current profiles, order histories, etc.? Is that possible? 

[Crhage]

Maybe I posted the question in the wrong place.

[LitExtension]

Hi Crhage,

Unfortunately, you can't update metafields through a .csv upload without completely overwriting their current profiles, order histories because Shopify doesn't support it.

[Brett_Helium]

Hey @Crhage, just to clarify on this, when importing customer data via a CSV file, it does overwrite the customer data, but only for the fields/columns that are actually uploaded. If you don't want to overwrite certain data, just make sure not to include a column for it in your CSV.

For example, if you just want to update/assign a specific metafield value to existing accounts, you can import a CSV file which only contains columns for the email address (to match to the existing customer accounts) and the specific metafield you are updating.