I placed a grocery order on line and received a day and time for pick-up but no further communication. I cannot find my order on line.

Hello your order information should be in an email that you should have received from Walmart after placing your order. I would recommend making an account with Walmart and using the online grocery app. There it will store all your information and purchase history linked to your account. Also when you do go to pickup your order the pickup location is in the parking lot on row 5 there are 10 spots.

I'll call

Yes