I can change the serial number from one for financial year but double number is message is comming what to do

We want to get the best help for you, rAMESH3.

I'd like to make sure that we're on the same page so I can provide you the right amount of information. May I ask what page exactly were you trying to modify the serial numbers? Where do you want to apply the changes? Any details or screenshot is appreciated so we can narrow down this issue.

I'll be here waiting for your response to answer any questions I can. Have a great day ahead.