I checked with my webhost and they confirmed that my SSL certificate is issued by Sectigo (through CPanel) but I'm getting an error when testing with the Finding API sandbox endpoint and I was wondering if using an AutoSSL certificate is acceptable?
Below is more details;
When using this endpoint: 'https://svcs.sandbox.ebay.com/services/search/FindingService/v1' I am getting the following error; (I did the best I can to indent / prettify it)
SimpleXMLElement Object ( [error] => SimpleXMLElement Object( [errorId] => 11002 [domain] => Security [severity] => Error [category] => System [message] => Authentication failed : Invalid Application: xxxx-xxxx-xxxx... [subdomain] => Authentication [parameter] => Invalid Application: xxxx-xxxx-xxxx... ) )
(BTW Everything works when using the production endpoint: 'https://svcs.ebay.com/services/search/FindingService/v1')