Yes. SKULabs automatically acknowledges new Walmart orders (orders in Walmart's Created status) so Walmart knows you've received them. Walmart expects orders to be acknowledged within 4 hours.
When SKULabs acknowledges Walmart orders
All of these must be true for a Walmart store's orders to be acknowledged:
Your SKULabs account billing is active.
The Walmart store is active in SKULabs.
Enable auto-synchronization is on in the store's settings.
Enable order acknowledgement is on in the store's settings (on by default).
To check these, go to Settings > Stores and open your Walmart store.
What types of Walmart orders are acknowledged?
Seller-fulfilled orders are always acknowledged.
3PL orders (fulfilled by a third-party logistics service) are also acknowledged when Acknowledge 3PL (non-seller fulfilled) orders is on in the store's Access credentials & integration settings. This is on by default.
Walmart Fulfillment Services (WFS) orders are not acknowledged by SKULabs, since Walmart handles them.
If Import 3PL/WFS (non-seller fulfilled) orders is on, SKULabs waits until an order is at least 15 minutes old before acknowledging it, to give your 3PL time to acknowledge the orders it fulfills first.
Check what was acknowledged
Each acknowledgement run is recorded in your sync reports. Go to Settings > Advanced > Sync reports and filter by Acknowledge Orders to see how many orders were acknowledged and any that failed.