APM not picking up prerun variables

[aenand]

Hello! I am trying to set three APM variables with the datadog/prerun.sh script. I see with a herkou env command that the values are getting set but Datadog APM is not picking any of them up in the dashboard. Any idea what's going on?

Script:

#!/usr/bin/env bash

# Set app version based on HEROKU_SLUG_COMMIT
if [ -n "$HEROKU_SLUG_COMMIT" ]; then
  DD_VERSION=$HEROKU_SLUG_COMMIT
  DD_GIT_COMMIT_SHA=$HEROKU_SLUG_COMMIT
fi
DD_GIT_REPOSITORY_URL="{{github_url}}"