Firms need to recheck the bank routing numbers provided them versus their own copy of the ACH Participant Directory of routing numbers as an additional check. Occasionally, wires can be rejected because one bank has closed its corresponding bank relationship with the other bank. The correct correspondent bank account number can usually be confirmed by calling up the wire department at the intermediary bank in New York or wherever it is located. Even if all the information provided is correct, banks themselves can make mistakes and the wires do not go through. For example, banks can send wires to the wrong branch.
Wires can sit in limbo indefinitely.
Consequently, it is important to Email the supplier at the time of the wire to let them know the wire is underway, so they can look for it to be credited to their bank account. If the wire does not arrive promptly, they can investigate it. This includes the exact spelling of the name of the beneficiary and the exact account number. Attention needs to be paid as to whether the wire is being sent to a US dollar bank account or a local currency bank account. US dollar wires can be rejected, for example, if they are sent to a local currency bank account.