@matt_crowther That should work provided the NTNAME values in the Section Access table have the Domain\User setup. You should not need the NTDOMAINSID unless you can potentially have duplicate users, but I do not think this should happen in this case. You did not say what version of 11.20 either, if it is an older SR, it may be something defect related that was addressed in a later SR too, so keep that in mind as well. If the Domain B users can login to the AccessPoint and it shows their user ID correct in the AccessPoint page the same way the Domain A users are being shown, I would suspect everything should be good, but if there is a delta, you may need to do a regular app and use the OSUser() function in it to see how Domain A v Domain B users are being logged with that, that is about the best way to get to the bottom of things I think, as there has to be a mismatch I think somewhere.
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