https://community.developer.cybersource.com/t5/Integration-and-Testing/Sandbox-credentials-are-not-working/m-p/91595#M57505 <P>For some reason my APIs credentials don't work, I get authentication error. Tried creating them again, but the issue persists.<BR /><BR />List of things I tried:<BR />- Calling APIs from both Postman and docs page. For example, using my API login ID and Transaction key here&nbsp;<A href="https://developer.authorize.net/api/reference/index.html#transaction-reporting-get-merchant-details" target="_blank" rel="noopener">https://developer.authorize.net/api/reference/index.html#transaction-reporting-get-merchant-details</A><BR />I get:&nbsp;<SPAN class="">"code"</SPAN><SPAN>: </SPAN><SPAN class="">"E00007"</SPAN><SPAN>, </SPAN><SPAN class="">"text"</SPAN><SPAN>: </SPAN><SPAN class="">"User authentication failed due to invalid authentication values."</SPAN><BR /><BR />- Using Accept.js by copying the exact same both examples from docs(<A href="https://developer.authorize.net/api/reference/features/acceptjs.html#Example_of_the_Complete_HTML_Page" target="_blank" rel="noopener">https://developer.authorize.net/api/reference/features/acceptjs.html#Example_of_the_Complete_HTML_Page</A>) for sandbox, but changing the API login key and client ID in the code.<BR />I get:&nbsp;E_WC_21: User authentication failed due to invalid authentication values.<BR /><BR />The contact support from chat told me to create a thread here to get help on this.<BR />Thanks.</P> Tue, 22 Apr 2025 17:24:28 GMT geronimo 2025-04-22T17:24:28Z https://community.developer.cybersource.com/t5/Integration-and-Testing/Sandbox-credentials-are-not-working/m-p/91595#M57505 <P>For some reason my APIs credentials don't work, I get authentication error. Tried creating them again, but the issue persists.<BR /><BR />List of things I tried:<BR />- Calling APIs from both Postman and docs page. For example, using my API login ID and Transaction key here&nbsp;<A href="https://developer.authorize.net/api/reference/index.html#transaction-reporting-get-merchant-details" target="_blank" rel="noopener">https://developer.authorize.net/api/reference/index.html#transaction-reporting-get-merchant-details</A><BR />I get:&nbsp;<SPAN class="">"code"</SPAN><SPAN>: </SPAN><SPAN class="">"E00007"</SPAN><SPAN>, </SPAN><SPAN class="">"text"</SPAN><SPAN>: </SPAN><SPAN class="">"User authentication failed due to invalid authentication values."</SPAN><BR /><BR />- Using Accept.js by copying the exact same both examples from docs(<A href="https://developer.authorize.net/api/reference/features/acceptjs.html#Example_of_the_Complete_HTML_Page" target="_blank" rel="noopener">https://developer.authorize.net/api/reference/features/acceptjs.html#Example_of_the_Complete_HTML_Page</A>) for sandbox, but changing the API login key and client ID in the code.<BR />I get:&nbsp;E_WC_21: User authentication failed due to invalid authentication values.<BR /><BR />The contact support from chat told me to create a thread here to get help on this.<BR />Thanks.</P> Tue, 22 Apr 2025 17:24:28 GMT https://community.developer.cybersource.com/t5/Integration-and-Testing/Sandbox-credentials-are-not-working/m-p/91595#M57505 geronimo 2025-04-22T17:24:28Z https://community.developer.cybersource.com/t5/Integration-and-Testing/Sandbox-credentials-are-not-working/m-p/91600#M57508 <P>Issue fixed. I was not using sandbox credentials. The initial switch set in "TEST" mode was confusing me.</P> Wed, 23 Apr 2025 15:18:22 GMT https://community.developer.cybersource.com/t5/Integration-and-Testing/Sandbox-credentials-are-not-working/m-p/91600#M57508 geronimo 2025-04-23T15:18:22Z