*** Make sure to VOTE UP so we hit 100 votes; otherwise, Clarizen does not even consider the enhancement ***
Yes, this is a CRITICAL requirement for us and probably others out there who do not even realize it. :)
Salesforce uses a 15 Digit Unique ID for all their records when viewed through the browser (web service). Turns out that Clarizen cannot handle Mixed Case External ID?!?!
Therefore, when you attempt to Customize CLZ External ID to match the SFDC Unique ID you will get an ERROR:
SFDC Object #1:
SFDC Object #2: