The First Day of Our POS System

After:  Today was a hard day. I visited a store of our client this morning, because it was their first day of using our new POS system. I was going to stay there for two or three hours, but unfortunately, I couldn't leave until 7:00 pm, because there were several serious system problems. I had been standing near grocery area to support store staff. Fortunately, they were very cooperative and we were able to solve those serious problems.  Today was a hard day. I visited a store of our client this morning, because it was the first day of our new POS system. I was going to stay there for two or three hours, but unfortunately, I couldn't leave until 7:00 pm, because there were several serious system troubles. I had been standing near grocery area to support store staff. Fortunately, they were very collaborative and we could solve those serious problems.