SKULabs uses your Warehouse addresses where an order is shipped out from as the From Address on shipping labels. If the warehouse you're shipping from does not have an address, the store's origin address will be used as the from address instead.
To edit the From Address on shipping labels, you can change or add the address of the warehouse your orders are shipping from.
To do this, visit the Inventory > Warehouses page. Look under the Origin column to confirm if an address is provided for your warehouses.
To add/edit address of a warehouse, simply click on the name of a warehouse and click Edit.
Then, enter desired address on the Edit warehouse window that appears and Save.