How to Use 'Specify Skip Rule' Functionality in BPM to Items number not start with 'C%'

Summary:

Skip rule based on item number.

Content (please ensure you mask any confidential information):

I need to know How create a skip rule for item number not like 'C%'

Which syntax is correct?

Version (include the version you are using, if applicable):

Oracle Fusion Cloud 25A

Code Snippet (add any code snippets that support your topic, if applicable):

$Task/task:task/task:payload/ns1:findReqHeaderDimensionResponse/ns1:result/ns2:RequisitionLine/ns2:ItemNumber