1. The payment service provider of the payee shall implement effective procedures to detect whether the fields relating to the information on the payer and the payee in the messaging or payment and settlement system used to effect the transfer of funds have been filled in using characters or inputs admissible in accordance with the conventions of that system.
2. The payment service provider of the payee shall implement effective procedures, including, where appropriate, ex-post monitoring or real-time monitoring, in order to detect whether the following information on the payer or the payee is missing:
(a) for transfers of funds where the payment service provider of the payer is established in the United Kingdom or Gibraltar, the information referred to in Article 5;
(b) for transfers of funds where the payment service provider of the payer is established outside the United Kingdom or Gibraltar, the information referred to in Article 4(1) and (2);
(c) for batch file transfers where the
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