Adding a unique identifier to your spreadsheet is a required step. To connect the default language content and translations, you need to use an ID number. You cannot use other custom fields, such as SKU.
Also, you mention: "If to do so I always have to follow these instructions" May I ask you to explain a little bit more what is your actual question?
My apologies but I cannot understand what you are asking, because preparing a CSV file is how WP All Import is working, and having correct translations is a requirement for WPML ALL Import.
I will describe the process just in case. If you wish to ask something specific please ask me at the end.
To Update products you need a file XML or CSV with all the details you wish to update.
The columns you will have is based on what you need to update. For example, if you wish to update short description, you would need the column with the unique identifier (will come back to this shortly ) and the short description, and one last column with the language code.
Then you need to prepare the import template in WP ALL Import. You can do this one time and save it for future purposes.
In the import template, you will need to define the unique identifier. Because of this you need to read this important details when you have already content in your site :
You've already answered me... I just wanted to know if there were any differences between the procedure for inserting new products and updating existing products.
Thanks
This ticket is now closed. If you're a WPML client and need related help, please open a new support ticket.