The first and third look ok, the middle one is no good as the serial numbers aren't a positional parameter, they're a keyword argument.   Any chance you fell foul of the special rate limit on the endpoint? "This operation can be used up to ten times within a single five minute window."   Otherwise, maybe it's just another transient weirdness 😀 ... View more

Yep, I would hit up support and ask that they "unhide" those two settings above for your org, then you enable per access policy.  That's what fixed us. ... View more

I fixed this with the following snippet in my welcome message:   <style> .button { background: #0000FF; color: #ffffff; border-radius: 2px; margin: 2.5em 0 1em; padding: 1em; box-sizing: border-box; width: 100%; display: inline-block; text-align: center;} </style>   I was only trying to modify my "I agree" button in this instance.   ... View more