Hi Anupam,
Thanks for your response.
1. Yes. CR finally approved.
2. No. After CR approval, i checked the data in BP transaction, i can see customer number is <internal> under the tab Customer: General Data.
Workflow log is competed with success. For mandatory fields, Infact, i am not entering any additional data when i edit BP tranasction. I am just simply go to edit and SAVE it. Then, Customer number is being generated and KAN1 table data is getting filled.
Please advice if there could be any place to dig.