This error occurs when we are unable to recognize the MerchantOrderID you provided. The
MerchantOrderID must exactly match a value you previously provided in an order acknowledgment
feed. Common reasons why this error may occur include:
You accidentally provided the AmazonOrderID instead of your own MerchantOrderID.
You transposed or omitted characters in your MerchantOrderID.
Your MerchantOrderID was never created in the Amazon system because of an error in a
previous order acknowledgement feed.
To resolve this error:
Review the MerchantOrderID field. If the AmazonOrderID is in that field, provide a valid
MerchantOrderID. If the field has a typo, correct this.
Update your acknowledgment feed with the corrected MerchantOrderID and resubmit your
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