The bank said in a statement that the new feature would enable any user to immediately recognise a purchase instead of puzzling over the vendor.
The new service can be invoked by the touch of a button and displays more detail for both credit and debit card transactions.
Bankwest executive general manager, Technology and Transformation, Andy Weir, said the new service was introduced as a direct result of customer feedback.
“This new digital service will offer our customers the ability to self-serve - something they tell us they want to be able to do time and again - and find out where their money’s gone.
“More often than not nothing sinister’s occurred and the confusion’s arisen because of the trading name of the business. With this new service the customer will be able to see enough detail to alleviate any concern they may have."