Hi Partha,
Please create the same SO and delivery in test system to see if the problem is reproducible or not. If it is reproducible, this means that there is problem in system cutomizing or coding.
If it is not reproducible, pelase focus on how to correct the data following below steps:
First, please check VBFA to see if there is any wrong data or not.
If VBFA data is correct, please run SDVBUK00 report to correct the status in SO.
If VBFA data is wrong, it is needed to correct VBFA data first. This need to be done manually on database level.
Contact me again in case of any question.
Best regards,
Hualin