I'm having a hard time figuring out why I'm getting a 403 error when I try to post to our SP16 website. I'm able to use GET, but not POST. The user has full edit permissions. I'm getting the following message
"The security validation for this page is invalid. Click Back in your Web browser, refresh the page, and try your operation again."
Here's my set up:
Hi @PrasadAthalye ,
Yes, the permissions on the gateway are set correctly. I was able to get this to work by using patch and adding accept to my headers.
Are you connecting on-prem using On-Premise Gateway? Does the user context of On-Premise Gateway has required permissions?