When you make an international wire transfer (MT103 SWIFT) you are required to instruct your bank regarding transfer charges (payment instructions).
BEN, SHA, OUR are codes in a SWIFT instruction, at field 71A "Details of Charges". The OUR instruction means you pay all transfer charges. We receive all your payment. SHA (shared) means you only pay your bank's outgoing transfer charge. We receive your payment minus the correspondent (intermediary) bank charges. BEN (beneficiary) means you do not pay any charge. We receive your payment minus all transfer charges.
We require all international transfers to us to be made with the OUR instruction So make sure your electronic TT copy reads OUR as payment instructions.