I cannot validate hmrc certificate

[just_carol]

I am using adobe DC and am trying to submit a P11D form to HMRC but cannot validate the signatures/certificate.  I am not very technical but have tried many of the suggestions found on the internet, all to no avail.  HMRC suggested downgrading to adobe X1, but I don't want to do that unless it is the only option. Any ideas anyone?

[try67 · Accepted solution]

Go to Edit - Preferences - Trust Manager and click both Update Now buttons,

then try again.

[just_carol]

I cannot believe that it was that simple.  Try67-Thank you so much.