Purchasing Transaction Create (setExchangeRateValue)

[brunoda6]

Hi,

Im trying to create a po from a pr. This pr has Custom exchange rate Type ("Custom") so i set the setExchangeRateValue with the value in float but i get a error saying that is empty i printed the object before send it and the value it's there but i keep receiving the error saying that the exchange rate is empty.

heres a snippet of my code:

$pt = new PurchasingTransactionCreate();
$pt->setTransactionDate($transactionDate);
$pt->setTransactionDefinition($entidade['e_transaction_definition']);
$pt->setCreatedFrom($pr['DOCID']);
$pt->setRecordNo($pt->getControlId());
//$pt->setDocumentNumber($pr['DOCNO']);
$pt->setVendorId($pr['CUSTVENDID']??'');
$pt->setVendorDocNumber($pr['VENDORDOCNO']);
$pt->setOriginalDocumentDate(DateTime::createFromFormat('d/m/Y', $pr['WHENCREATED']));
$pt->setDueDate(DateTime::createFromFormat('d/m/Y', $pr['WHENDUE']));
$pt->setMessage($pr['MESSAGE']??'');
$pt->setBaseCurrency($pr['BASECURR']);
$pt->setTransactionCurrency($pr['CURRENCY']);
$pt->setExchangeRateDate(DateTime::createFromFormat('d/m/Y', $pr['EXCHRATEDATE']));
$pt->setExchangeRateType($pr['EXCHRATETYPES.NAME']??'');
if($pr['EXCHRATETYPES.NAME'] == "Custom"){
$pt->setExchangeRateValue((float)$pr["EXCHRATE"]);
}
$pt->setState('Pending');
$pt->setLines($objLines);
$pt->setReturnToContactName($pr['SHIPTO.CONTACTNAME']??'');
$pt->setPayToContactName($pr['CONTACT.CONTACTNAME']??'');
$pt->setShippingMethod($pr['SHIPVIA']??'');
$pt->setReferenceNumber($pr['PONUMBER']??'');
$pt->setPaymentTerm($pr['TERM.NAME']??'');
$clientEntity = $this->clientEntity($pr['MEGAENTITYID']);

        if($clientEntity){
            $response = $clientEntity->execute($pt);
        }

The error is: PL03000004 Exchange rate is empty.

Note: In the sandbox panel i can convert successfully
Can someone tell me if the problem is on my end?