When you’re tagging a transfer between accounts the system gives you the option of either matching the transaction with one that it has found in the destination account, or it can create a new transaction in there.
Unfortunately there isn’t a way of doing this when using bank tagging rules, it can only be done manually.
For more information on this, please check out the following link: Linking duplicate payments from Barclaycard and Barclays - #2 by QFSian