Outbound Only - Master of Inventory
SKULabs is a master of inventory system which uses product SKUs and titles from sales channels listings to initially create items in a process called "build". This process only imports the sales channels listing information ONCE, that is when your items are "built" from these listings.
After an item is initially built from its listing, any further information transfer for that item is strictly outbound from SKULabs and typically limited to stock levels and pricing information. This means that changing a products listing information on Shopify will not automatically update or change the SKULabs items that are linked to them.
When updating your SKUs or product names in bulk on your sales channels, you will also need to reflect those updates to your item information in SKULabs separately.
This is by design, and can be handled a few easy ways if needed.