Payment failure

OK
I secured a sandbox account and not being able to find the info I needed was told they don't support the sandbox!??
I eventually found my way and secured the api credentials and a cert_key_pem.txt which I was told I would need later but not when or why.
The api credentials only include a username and password and no signature.

I'm thinking the cert_key_pem.txt should be up on the site somewhere but where?

I installed the UN and PW and left the Sig as it was and got the following response…

Direct Pay:
Full Request: n/a
Full Response: n/a
Express Authorize
Full Request: <?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Header><RequesterCredentials xmlns="urn:ebay:api:PayPalAPI"><Credentials xmlns="urn:ebay:apis:eBLBaseComponents"><Username>**************</Username><Password>***************</Password><Signature>*****************</Signature><Subject/></Credentials></RequesterCredentials></soap:Header><soap:Body><SetExpressCheckoutReq xmlns="urn:ebay:api:PayPalAPI"><SetExpressCheckoutRequest><Version xmlns="urn:ebay:apis:eBLBaseComponents">63.0</Version><SetExpressCheckoutRequestDetails xmlns="urn:ebay:apis:eBLBaseComponents"><ReturnURL>http://014da19.netsolhost.com/bole/store/pp_confirm.php</ReturnURL><CancelURL>http://014da19.netsolhost.com/bole/store/pp_cancel.php</CancelURL><SolutionType>Sole</SolutionType><LandingPage>Billing</LandingPage><OrderTotal currencyID="USD">1950</OrderTotal><PaymentDetails><ItemTotal currencyID="USD">1950</ItemTotal><PaymentDetailsItem><Name>Adams, Samuel W. </Name><Amount currencyID="USD">1950</Amount><Quantity>1</Quantity><Number>154</Number></PaymentDetailsItem></PaymentDetails><PaymentAction>Authorization</PaymentAction></SetExpressCheckoutRequestDetails></SetExpressCheckoutRequest></SetExpressCheckoutReq></soap:Body></soap:Envelope>
Full Response: <?xml version="1.0" encoding="UTF-8"?><SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:cc="urn:ebay:apis:CoreComponentTypes" xmlns:wsu="http://schemas.xmlsoap.org/ws/2002/07/utility" xmlns:saml="urn:oasis:names:tc:SAML:1.0:assertion" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:wsse="http://schemas.xmlsoap.org/ws/2002/12/secext" xmlns:ed="urn:ebay:apis:EnhancedDataTypes" xmlns:ebl="urn:ebay:apis:eBLBaseComponents" xmlns:ns="urn:ebay:api:PayPalAPI"><SOAP-ENV:Header><Security xmlns="http://schemas.xmlsoap.org/ws/2002/12/secext" xsi:type="wsse:SecurityType"></Security><RequesterCredentials xmlns="urn:ebay:api:PayPalAPI" xsi:type="ebl:CustomSecurityHeaderType"><Credentials xmlns="urn:ebay:apis:eBLBaseComponents" xsi:type="ebl:UserIdPasswordType"><Username xsi:type="xs:string"></Username><Password xsi:type="xs:string"></Password><Signature xsi:type="xs:string">********************</Signature><Subject xsi:type="xs:string"></Subject></Credentials></RequesterCredentials></SOAP-ENV:Header><SOAP-ENV:Body id="_0"><SetExpressCheckoutResponse xmlns="urn:ebay:api:PayPalAPI"><Timestamp xmlns="urn:ebay:apis:eBLBaseComponents">2011-03-15T19:56:06Z</Timestamp><Ack xmlns="urn:ebay:apis:eBLBaseComponents">Failure</Ack><CorrelationID xmlns="urn:ebay:apis:eBLBaseComponents">e8f8e7bd8a09a</CorrelationID><Errors xmlns="urn:ebay:apis:eBLBaseComponents" xsi:type="ebl:ErrorType"><ShortMessage xsi:type="xs:string">Security error</ShortMessage><LongMessage xsi:type="xs:string">Security header is not valid</LongMessage><ErrorCode xsi:type="xs:token">10002</ErrorCode><SeverityCode xmlns="urn:ebay:apis:eBLBaseComponents">Error</SeverityCode></Errors><Version xmlns="urn:ebay:apis:eBLBaseComponents">63.0</Version><Build xmlns="urn:ebay:apis:eBLBaseComponents">1741654</Build></SetExpressCheckoutResponse></SOAP-ENV:Body></SOAP-ENV:Envelope>
Express Process:
Full Request: n/a
Full Response: n/a
Auth Net:
Full Request: n/a
Full Response: n/a
Express Authorize:
Full Request: <?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Header><RequesterCredentials xmlns="urn:ebay:api:PayPalAPI"><Credentials xmlns="urn:ebay:apis:eBLBaseComponents"><Username>************</Username><Password>**************</Password><Signature>***************</Signature><Subject/></Credentials></RequesterCredentials></soap:Header><soap:Body><SetExpressCheckoutReq xmlns="urn:ebay:api:PayPalAPI"><SetExpressCheckoutRequest><Version xmlns="urn:ebay:apis:eBLBaseComponents">63.0</Version><SetExpressCheckoutRequestDetails xmlns="urn:ebay:apis:eBLBaseComponents"><ReturnURL>http://014da19.netsolhost.com/bole/store/pp_confirm.php</ReturnURL><CancelURL>http://014da19.netsolhost.com/bole/store/pp_cancel.php</CancelURL><SolutionType>Sole</SolutionType><LandingPage>Billing</LandingPage><OrderTotal currencyID="USD">1950</OrderTotal><PaymentDetails><ItemTotal currencyID="USD">1950</ItemTotal><PaymentDetailsItem><Name>Adams, Samuel W. </Name><Amount currencyID="USD">1950</Amount><Quantity>1</Quantity><Number>154</Number></PaymentDetailsItem></PaymentDetails><PaymentAction>Authorization</PaymentAction></SetExpressCheckoutRequestDetails></SetExpressCheckoutRequest></SetExpressCheckoutReq></soap:Body></soap:Envelope>
Full Response: <?xml version="1.0" encoding="UTF-8"?><SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:cc="urn:ebay:apis:CoreComponentTypes" xmlns:wsu="http://schemas.xmlsoap.org/ws/2002/07/utility" xmlns:saml="urn:oasis:names:tc:SAML:1.0:assertion" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:wsse="http://schemas.xmlsoap.org/ws/2002/12/secext" xmlns:ed="urn:ebay:apis:EnhancedDataTypes" xmlns:ebl="urn:ebay:apis:eBLBaseComponents" xmlns:ns="urn:ebay:api:PayPalAPI"><SOAP-ENV:Header><Security xmlns="http://schemas.xmlsoap.org/ws/2002/12/secext" xsi:type="wsse:SecurityType"></Security><RequesterCredentials xmlns="urn:ebay:api:PayPalAPI" xsi:type="ebl:CustomSecurityHeaderType"><Credentials xmlns="urn:ebay:apis:eBLBaseComponents" xsi:type="ebl:UserIdPasswordType"><Username xsi:type="xs:string"></Username><Password xsi:type="xs:string"></Password><Signature xsi:type="xs:string">***************************</Signature><Subject xsi:type="xs:string"></Subject></Credentials></RequesterCredentials></SOAP-ENV:Header><SOAP-ENV:Body id="_0"><SetExpressCheckoutResponse xmlns="urn:ebay:api:PayPalAPI"><Timestamp xmlns="urn:ebay:apis:eBLBaseComponents">2011-03-15T19:56:06Z</Timestamp><Ack xmlns="urn:ebay:apis:eBLBaseComponents">Failure</Ack><CorrelationID xmlns="urn:ebay:apis:eBLBaseComponents">e8f8e7bd8a09a</CorrelationID><Errors xmlns="urn:ebay:apis:eBLBaseComponents" xsi:type="ebl:ErrorType"><ShortMessage xsi:type="xs:string">Security error</ShortMessage><LongMessage xsi:type="xs:string">Security header is not valid</LongMessage><ErrorCode xsi:type="xs:token">10002</ErrorCode><SeverityCode xmlns="urn:ebay:apis:eBLBaseComponents">Error</SeverityCode></Errors><Version xmlns="urn:ebay:apis:eBLBaseComponents">63.0</Version><Build xmlns="urn:ebay:apis:eBLBaseComponents">1741654</Build></SetExpressCheckoutResponse></SOAP-ENV:Body></SOAP-ENV:Envelope>
Express Process:
Full Request: n/a
Full Response: n/a
UPS:
Full Request: n/a
Full Response: n/a
FedEX:
Full Request: n/a
Full Response: n/a
USPS:
Full Request: n/a
Full Response: n/a