I looked through the LTI Variable Substitutions documentation and while there are variable substitutions available for Canvas.term.name and Canvas.term.id (which is the Canvas incremented ID like "104"), I was surprised to see there was no option for Canvas.term.sisSourceId
I tried testing other possible variants that may have been undocumented variables, but I was not able to find any that worked. Am I missing another way to do this? This would be very useful for a current implementation that has this information perfectly encoded without spaces in the Term SIS ID field, while the friendly Term Name field has spaces and other formatting changes that are not ideal for use programmatically.
I'm hoping there's a way to release this in the LTI launch custom fields, and if not, then this would be a feature request to include this as a useful variable substitution that is missing.
