Forum Discussion
Invalid issuer o signature error in SPO Provider-Hosted AddIns
(Note: we have already verified that this is not a problem with expired client secrets)
Hi all, we are having problems with SPO Provider-Hosted Add-Ins were we are using remote event receivers...al...
I'm assuming you have already found a way around this issue, but I resolved it by editing the permissions my App needed to the Host Web. Originally I was just leaving it blank, but setting those permissions explicitly in the manifest got it working.