Once you have created a stock Item and has been added to the stock takes outlets, it will take one full stock take to combine all related data into the stock item line. To ensure stock items are set to combine and merge the linked products please ensure the below is activated in each advanced stock outlet.
Click the Admin Cogs
icon along the top bar.
Click Advanced stock, then click Outlets and Stores.
Locate the outlet and click the Edit
icon.
Stay on the details tab and use the check box to activate or deactivate the setting apply stock item replacements.
Click Update to save any changes.