What is W91: Related Previous CCN-Cannot accept House Bill Close Message, its previous CCN already exists as a previous CCN on another House Bill Close message means?

What is W91: Related Previous CCN-Cannot accept House Bill Close Message, its previous CCN already exists as a previous CCN on another House Bill Close message means?

Reason: W91 states that another house bill has submitted a close message with the previous CCN same as what the client has used

Resolution: Client must coordinate with the carrier or master freight forwarder to verify if they have the correct Previous CCN to close the eHBL. This rejection usually fixed once client provide the correct Previous CCN on the Close Message and submit as Original.