To authorize a Walmart instance, click on Channels > Walmart, then open the Authorization tab.
SureDone now uses a one-click OAuth flow instead of a manually copied Client ID/Client Secret. On the Authorization tab you'll see two steps:
Step 1: Login with Walmart & Authorize — click the Authorize Walmart button at the bottom of the page to start the authorization process. You'll be redirected to Walmart, where you can log in with your existing Seller Central account (or sign up) and grant SureDone the listed permissions (Items, Inventory, Pricing & Promotions, Returns, Walmart Fulfillment Services, Shipping, Analytics, Orders).
Step 2: Select Walmart Integration Instance — if you have multiple Walmart stores connected to SureDone, choose which instance this authorization should link to.
Once you approve on Walmart's side, you'll be redirected back to SureDone and the channel will show as authorized. There is no longer a need to visit the Walmart Developer Portal or manually copy a Client ID / Client Secret.