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Gopikrishna DasariGopikrishna Dasari 

I have one question related to data loader

We can insert 5 million records through dataloader Is it best practice to insert maximum number of records or not?

If not why it is not best pracirtce ?

can anyone help me regarding this?
HarshHarsh (Salesforce Developers) 
Hi Gopalkrishna,

However, we can insert a maximum of 5 million records at one time.
It is not considered as a best practice because,
  • It affects the Performance of other users.
  • Insertion of a large number of records at one time increases the risk of error or the timeout  
  • The best practice is to insert records in the batch of 50,000 to 1,00,000 at one time.
Hope your query is answered.

Please mark it as Best Answer if the above information was helpful.

Thanks.