Why am I getting the message "Mixpanel error: Implementation error. Please contact support@mixpanel.com”?

“Mixpanel error: Implementation error. Please contact support@mixpanel.com” is a general error returned by Mixpanel’s tracking library. However, the two most common causes are:

  1. The app is running an old version of the Mixpanel snippet that loads the library, with which it is no longer compatible. This is a quick fix - simply replace the current snippet with this snippet.
  2. There is a race condition happening where some functions of the library trigger before the library has fully loaded. There are certain functions available as soon as you include the snippet (like track, identify, alias, people.set). You can see these functions declared in the snippet. However, some functions aren't available, like mixpanel.get_distinct_id() and mixpanel.get_property (and any others not included in the snippet). To avoid this race condition, you would need to make sure that you wrap those functions in the loaded callback - see an example here.

If neither of these resolves the error, reach out to support@mixpanel.com for additional assistance or help troubleshooting.