Hi,
I have the data like below. I used tile tool to group by the department to provide unique ticket number. After the grouping like 20081803(yyMMdd+03) for CS department, I want to provide different ticket number to CS. But, as I grouped by Department, it will output the same ticket number used before. Does anyone have any idea to tackle this?
| Department | Date & Time | Ticket No |
| HR | 10:58 AM 2020/08/18 | 20081801 |
| HR | 11:00 AM 2020/08/18 | 20081801 |
| HR | 11:04 AM 2020/08/18 | 20081801 |
| Marketing | 11:04 AM 2020/08/18 | 20081802 |
| Marketing | 11:04 AM 2020/08/18 | 20081802 |
| CS | 11:34 AM 2020/08/18 | 20081803 |
| CS | 13:00 PM 2020/08/18 | 20081803 20081804 |
| HR | 13:59 PM 2020/08/18 | 20081801 20081805 |
| HR | 14:00 PM 2020/08/18 | 20081801 20081805 |
Thank you!!