Updating PO Charge Account Directly in the Flexfield

Summary:

I want to check my understanding of the Transaction Account Builder:

Content (required):

We use TAB to default the Charge Account onto requisitions and POs. Any changes made to the Charge Account in the Requisition are overwritten by the TAB defaults.

If we make updates to the actual Charge Account flexfield in the PO, those updates are only overwritten if we select ‘Rebuild Accounts’. If we just save and then proceed, the updates made directly in the Charge Account are held – is this correct or has some setup been missed which prevents this?

Version (include the version you are using, if applicable):