cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Showing results for 
Search instead for 
Did you mean: 

How to clear the Expression Cache in Windchill

Highlighted
Newbie

How to clear the Expression Cache in Windchill

We recently had an issue where our change notice workflows, (completely OOTB) began to fail.  This was not reproducible in Stage or Development so as you can imagine, this was a bit of an issue.  Either way, the solution was rather simple.  Clear the expression cache.  I had never heard of this before and I figured I would share it with everyone.  So, without further ado, how to clear the Expression cache out. 

**Remember to do this on all nodes if running a cluster**

  1. Navigate to ---> Windchill\codebase\wt\workflow\expr
  2. Copy the contents to a safe place
  3. Delete the contents
  4. Restart Windchill
  5. Reproduce issue with a new Change Notice