Hi there @alexsina,
Thank you for taking the time to contact us!
As I can see this has been already forwarded by one of our support colleagues as a feature suggestion and at this time it was not implemented as the plugin was not updated in the meantime. I will pass this along once more to the team as a feature suggestion, however, I am not able to make any promises regarding its implementation or the timeframe, hope that you understand.
Since the plugin does not have the option to automatically match the SKU generated to the specified field in the Google Product Feed you can still try to manually do this instead as my colleague Pit suggested previously.
Is there anything else I can help you with?
Best regards,
