Can I move boa's to 2nd linked account?

Hi, I have two linked accounts.

Before I spend currency on boa's, I was wondering if I can mail them to toons on my 2nd account.

It appears I cannot. I have two linked accounts, and got an error when I tried to mail from one to another.

I wonder what the "linked" account actually means/does?

It does exactly what it says on merge page.

Quote:

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Players are now able to link an account and transfer any remaining characters above the 10 character limit to a fresh account.

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If you had more than 10 characters after Deathwing and Ragnaros merged you can transfer the remaining ones to another account. That's all.