how to add one additional subsidiary to the existing items using mass update

AI generated answer (using internal Slack threads):

To add an additional subsidiary to existing items using mass update, you can follow these steps: 1. Navigate to Lists > Mass Update > Mass Updates. 2. Under the General Updates subtab, click on Items. 3. Define your criteria for the items you want to update. 4. In the Mass Update Fields subtab, you will find the 'Subsidiary' field. Here, you can add the new subsidiary. 5. Click on 'Preview' to review your changes and then 'Perform Update' to execute the mass update. Please note that you need to have the necessary permissions to perform mass updates. Also, be aware that mass updates can take some time to complete depending on the number of records being updated. If you want to add an additional subsidiary to existing customers or vendors, you can do so by navigating to the 'Subsidiaries' tab in the customer or vendor record and clicking 'Add'. You can then select the subsidiary you want to add from the dropdown menu. If you can't see the 'Subsidiaries' tab, make sure that the 'Multiple Subsidiaries' feature is enabled in your account (Setup > Company > Enable Features > Company Subtab > Multiple Subsidiaries). ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******