When INTERP is used as the value of the SMAG field in a custom macro, the transition condition is bypassed and the processing moves on to evaluating the macro condition under the TO DO tab and performing the true/false actions based only on those evaluation results.
Release : 17.3
Component : SERVICE DESK MANAGER
As per the product documentation about "Define Behavior Template" , Transition Information should be verified before checking any thing from the TODO tab. However, if a custom macro is being used, this only happens if that macro uses SURE_SET either by providing that value explicitly or not providing a value for the SMAG field at all (SURE_SET is the default value).
https://techdocs.broadcom.com/content/broadcom/techdocs/us/en/ca-enterprise-software/business-management/ca-service-management/17-2/administering/configure-ca-service-desk-manager/establishing-support-structure/setting-up-category-or-area/define-behavior-template.html