Yes it's ok to delete the old certs, make sure the certificate you are deleting, thumbprint is not used in your new workflow manager.
Thanks & Regards,
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Hello,
I recently uninstalled and reinstalled SharePoint 2013 Worfkflow Manager which created new Certificates. I now have double certs and was wondering if there is any issue just simply deleting the old expired Workflow certs that were installed in previous Workflow Manager configuration?
Thanks for your help
Yes it's ok to delete the old certs, make sure the certificate you are deleting, thumbprint is not used in your new workflow manager.
Thanks & Regards,