Why am I unable to enter an Event Type on an ITA?

The Event Type field on the ITA document has been locked. This will ensure that the ITI and ITA always have the same event type. In the past, some users would edit this field and it would create incorrect accounting postings for the transaction. If an error is discovered in the Event Type on the ITA, the user will need to discard the ITA and communicate with the ITI department and modify the Event Type to the correct one before copying forward to create the new ITA.