Payment order &2 in bank area &1 - all items posted

What causes this issue?

All items in payment order &2 have been posted in bank area &1. If the
transaction currency of the ordering party item or recipient item
differs from the account currency, the system generates an additional
payment order for the currency swap in each case. You can use report
program IHC_BCAREVPO_ALV01 to list the additional payment orders for
currency swaps.

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