I have been trying to import old historical data with different naming series or Invoice numbers and currently I am facing an error as below.
For simplicity sake I have not introduced and tax info the data template is having plain Item,Qty and customer information. Based on mandatory columns required I downloaded the csv template and tried to fill in the data as much and tried to import. Since its sensitive data I can’t share the data template I am using.
Would request your help with this I would really appreciate it. Also needed to know optimal ways of doing this activity in general in ERPNext