A validation in a workflow task is correct (the designer validates and does not prevent completion of configuration) but does not work in practice. The idea is to allow only a select list of users to execute the step.
The validation is: WF_LOGGED_IN_USER = "user1" OR WF_LOGGED_IN_USER = "user2" OR WF_LOGGED_IN_USER = "user3" OR WF_LOGGED_IN_USER = "user4" OR... There are 11 users in this list.
The workflow designer does not complain about this, the OK button is enabled. But in practice these users are not able to execute the task and receive the 'condition not fulfilled' error message.
Is there a limit to the length of the condition, or some other syntax error visible here?