This field contains an alphanumeric string that allows us to track every Application Programming Interface (API) call attempt. Every API response includes a Correlation ID field. If you contact us with any questions regarding a specific API call, provide this value by attaching the log file to the Technical Support ticket you create in your request.
SOAP API response
Example of a Correlation ID returned in a SOAP API response:
<DoExpressCheckoutPaymentResponseType xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<Timestamp xmlns="urn:ebay:apis:eBLBaseComponents">2008-09-05T20:35:30Z</Timestamp>
<Ack xmlns="urn:ebay:apis:eBLBaseComponents">Success</Ack>
<CorrelationID xmlns="urn:ebay:apis:eBLBaseComponents">d02ac567bfe18</CorrelationID>
<Version xmlns="urn:ebay:apis:eBLBaseComponents">53</Version>
<Build xmlns="urn:ebay:apis:eBLBaseComponents">676720</Build>
NVP API response
Example of a Correlation ID returned in an NVP (Name-Value Pair) API response:
TIMESTAMP=2008-09-05T00:22:56Z&CORRELATIONID=23f585945be2f&ACK=Success&VERSION=53&BUILD=67133
A Correlation ID is also commonly referred to as a “Debug ID” if API logging is enabled with a third-party application, shopping cart, CRM, plugin, or platform.