a!queryEntity: Invalid Query Parameter

Question

Trying to understand why on the process history for the instance below I see the error on the first screen shot. On the SAIL task on the second screen shot, the task name for the task is coming from an expression rule and that expression rule has a query entity (not best practice, I know) 
 Has anyone experienced this issue in the past?

shafaly · Answer

Hi erickp, Issue is in P360_formattaskdisplaynamewithinstanceid rule where you are using p360_qry_r_getpriority rule and variable which is passed in this rule is coming as null. to resolve the issue you need to add a null check of that variable before using that query rule and then needs to check why the variable is coming as null (according to requirement). Error is coming on the process history because history always shows the task display name and your task display name is throwing the error Hope this will help you. Thanks Shafaly