Hi,

I have created an Account Record Type say 'Exhibit'. I assigned it to System Admin profile and created few Accounts using 'Exhibit' record type.

Now I want assign default Master record type to those Accounts. I modified System Admin profile to use Master record type as default for Accounts. I'm trying to update the Account Record Type from Exhibit to Master by code / data loader, but I'm not able to do that.

For Master record type, record type Id will be null right? But when I'm assigning null by code and updating Accounts, record type is not getting updated to Master. How can I do this by data loader?

Can anyone please help me on this?

Thanks!
Shruti