To assign tags to products in bulk, follow the procedure below:
Populate the product_tags template.
Create a new ingestion of type Product Tags to assign tags to products.
The ingested tags are added to the given product's current tags. In other words, pre-existing tags are not replaced.
Note: The root directory of the FTP account is processed on regular basis. If your files do not appear in the ingestion list after a processing cycle, check the failed directory of the FTP account.