Once this fix has been applied to the CRM Online organization, it will be required to disable the Automatic Record Creation Rule, delete the Case Creation Step in the Rule Item, and recreate the Case Creation Step. This must be done, as the fix includes new Dynamic Value slugs to be created in the out-of-box Customer and Contact fields. To do this:
1. Go to Settings| Service Management| Automatic Record Creation and Update Rules
2. Click the checkmark next to the Rule and select Deactivate
3. Then, open the Automatic Record Creation Rule
4. Select to open the specified Rule Item
5. Under Actions, select the Create Case step and click Delete this Step. Save the form
6. Re-add the action to Create Case
7. Click on Set Properties and re-add any custom mappings. The out-of-box Customer and Contact fields will automatically populate to {null(Channel Properties)}. This value must remain, in order for the Email resolution to correctly correlate to the Contact or Account. If this value is changed, it cannot be reset manually and the Create Case step must be deleted and recreated again.
8. Save the form
9. Re-enable the Automatic Record Creation Rule