Hi, Again thanks for your follow up. I do have an update. We transferred the Account Holder back to my AppleID and then I generated a new CSR and Developer ID Installer certificate which I could successfully import to my Keychain. It is a very srange but at least now all are happy that we have working certificate. I believe I now need to email product-security@apple. com and request they delete/remove the un-used certificate that did not work. Many Thanks -Brian

Thanks for prompt response. My Mac is company issued & company manager so I cannot just add a new user to the Mac.However, I shared the .cer with my collegue and he imported to his Keychain and cannot see the cert either. Very strange. Please note - that I created a iOS DIstribution cert after I was having issues with the Installer cert import and the iOS Distribution cert imported fine without any issues or without reboot. Is there any way to run a debug or check logs after the import command completes. I mean the command runs and completes, but there is no indication if the import was successful or not. Assuming the command was sucessful, any way to locate the newly imported cert ?

I did cert evaluation for the 2 WDRCA certs also:-  #1 - Developer ID Application with Expiry in 2027 (referenece the screenshot attached) Evaluation Status : No root certificate found. Certificate Status: Good   #2 - WDRCA Expring 20-Feb 2030 Evalution Status : Invalid Extended Key Usage Certificate Status: Invalid Key Usage: Invalid Extended Key Usage  Apple Root CA Expiring 9-Feb 2035 Evaluation Status : Invalid Extended Key Usage Certification Status : Trusted Root  #3 - WDRCA Expiring 7-Feb 2023 Evalution Status : Invalid Extended Key Usage Certificate Status: Invalid Extended Key Usage  Apple Root CA Expring 9-Feb 2035 Evaluation Status : Invalid Extended Key Usage Certification Status : Trusted Root

Yes correct. I created the certificate on my local Mac - and then I exported and shared same to 2 Macs and they also show same "Certificate is not trusted". cert