Why I'm getting this error during create delivery note?

The serial no XXXXXXXXX has been used in the future transactions so you need to cancel them first. The list of the transactions are as below.

  • Purchase Receipt **[PR/11-22/00XXX]

Can you check the date of the purchase receipt which is popping up against the date of transaction of the Delivery Note?

It is possible the Serial number you are trying to deliver hasn’t yet been received on a certain date in the Purchase Receipt.

okay Got it.
Purchase Receipt was current date and I was billing in back date.