Thanks for your question and welcome to the community.
As long as your settings are correct, you should be able to use your PayPal account in store.
Just to verify, you can check your settings in the link found here.
The cashiers are there to ring you up; they won't have (and neither would I even if I was there myself) any information on troubleshooting any P.O.S. systems.
Other than trying another terminal, this would be the only solution without getting more information from you.
Be sure to double check this from PayPal as well as your local Home Depot store for future purchases. I apologize for the inconvenience you have encountered.
Let us know if you have any additional questions or concerns,
I am glad you posted this here. I have tried twice over the past 3 weeks to pay at the register using paypal credit. Each time I loaded my basket, went to the register and it could not complete the transaction.
I called PayPal each time and the DID verify there was a system change at Home Depot (approximately 3 weeks ago) and they have been having problems ever since. They have NOT communicated this to Home Depot as the stores I wen to in Washington state also did not know about it.
I attempted to call this morning before I went to the store, but Customer Service is closed for the holiday.
Once again - PayPal credit is not working when attempting to pay in-store. Other forms of PayPal ARE working and the reason for that is they are separate systems. So when you attempt a transaction on anything else but PayPal credit, then it works.
Home Depot, please contact PayPal and have them verify. Being a IT systems consultant, it baffles me why they would not inform Home Depot staff that there is problem.