Can I create Orders based on Ebay Record Number

Summary

There is no API for creating orders based on Sales Record Number. However; there is a 1:1 relationship between eBay Sales Record Number and eBay Transaction( ItemID+TransactionID) so that you can use AddOrder by specifying ItemId and TransactionID pairs as below in the request to create orders:

<?xml version="1.0" encoding="utf-8"?>
<AddOrderRequest xmlns="urn:ebay:apis:eBLBaseComponents">
<Version>1263</Version>
<ErrorLanguage>en_US</ErrorLanguage>
<WarningLevel>High</WarningLevel>
<Order>
<CreatingUserRole>Seller</CreatingUserRole>
<PaymentMethods>PayPal</PaymentMethods>
<Total currencyID="USD">8.50</Total>
<TransactionArray>
<Transaction>
<Item>
<ItemID>150370031260</ItemID>
</Item>
<TransactionID>381063459005</TransactionID>
</Transaction>
<Transaction>
<Item>
<ItemID>150349337893</ItemID>
</Item>
<TransactionID>381061710005</TransactionID>
</Transaction>
</TransactionArray>
</Order>
<RequesterCredentials>
<eBayAuthToken>AgAAAAxxxx</eBayAuthToken>
</RequesterCredentials>
</AddOrderRequest>

Then, the new order with a new Sales Record Number and the item transactions in that order are displayed on the seller's My eBay page.

Also, you can specify <IncludeContainingOrder>true</IncludeContainingOrder> in GetSellerTransactions to obtain the ContainingOrder data that each Transaction belongs to:

<?xml version="1.0" encoding="utf-8"?>
<GetSellerTransactionsRequest xmlns="urn:ebay:apis:eBLBaseComponents">
<DetailLevel>ReturnAll</DetailLevel>
<ModTimeFrom>2009-10-02T17:18:52.799Z</ModTimeFrom>
<ModTimeTo>2009-10-02T18:28:52.799Z</ModTimeTo>
<IncludeContainingOrder>true</IncludeContainingOrder>
<RequesterCredentials>
<eBayAuthToken>AgAAAAxxxx</eBayAuthToken>
</RequesterCredentials>
</GetSellerTransactionsRequest>

OrderID and SalesRecordNumber that associated with that order are reported in ContainingOrder as below:

- <ContainingOrder>
<OrderID>55552579012</OrderID>
<OrderStatus>Active</OrderStatus>
- <ShippingDetails>
<SellingManagerSalesRecordNumber>1026</SellingManagerSalesRecordNumber>
</ShippingDetails>
<CreatingUserRole>Seller</CreatingUserRole>
</ContainingOrder>