Description:
Use the Accounts -> Get -> General -> Filter List -> List Filter helped getting the identifier of the account.
Solution:
When using the Actions Rules Tab: Accounts -> Set Account Data by Identifier -> Set there is a question on how to retrieve the Account Name value.
You should use the Accounts -> Get -> General -> Filter List -> List Filter helped getting the identifier of the account.
You can then use it in the Action Rules Tab: Accounts -> Set Account Data by Identifier -> Set