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You need to copy the content of the public key to X509 Public Key Certificate field. (If you don't have this, go to the Installation Guide, it's the content of the file Xero/etc/certs/magenest.cer, you can open it in any text editor).
+ You can pick up that attached file content of the public key.
+ Or you can create Or creating a new content of public key:
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+ Copy and paste content file .pem into magenest/xero/etc/certs/magenest.pem
When you have file etcfile Xero/etc/certs/magenest.cer copy , copy and paste them into X509.
You will see the Xero accounting interface after you've done the last step but now we need to continue our setup, go to this site: https://app.xero.com/Application to create the Application.
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After that, check the information again then check on "I have read and agree to the Xero Developer Platform" & click Save.
If everything goes right, you will see the following content. By now we have done everything on the Xero site, now move to your magento 2 backend but don't close this site.
Click on "Show" button to show the Consumer Key & Consumer Secret.
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