Google merchant center unique identifier installation at bulk

[Ronit]

Hi sir
I am facing a probel where i cant add unique code identifier at once I wanted to add it in a bluk since we have more than 3000 products I can add one at a time.
Please suggest me to  

[EmmanuelFlossie]

There are several ways forward to achieve the same.

Bulk edit using: https://apps.shopify.com/bulk-product-editor?surface_detail=albastar&surface_inter_position=1&surfac...

Use a supplement feed in google merchant center: https://support.google.com/merchants/answer/7439058?hl=en