KB45958: Blank error message "()" appears when executing ALTER EMAILSUBSCRIPTION Command Manager script in MicroStrategy 9.3.1

SYMPTOM:
 
When a user tries to alter a subscription as seen below in Strategy Command Manager 9.3.1,  The following error may occur:
 

ALTER EMAILSUBSCRIPTION "subscription_name" MANAGE ALL GUID subscription_guid SCHEDULE "schedule_name" IN PROJECT "project_name";

  

 

()

  
CAUSE:
 
This error can occur when the subscription referenced in the script in an inconsistent state. It is unknown at this time what causes the subscription to get into this state.
 
NOTE:  In this instance, the problematic subscription was not experiencing other issues regarding execution or modification.
 
ACTION:
 
To allow the Command Manager script to be successfully executed browse to the subscription in Administration -> Configuration Managers -> Subscriptions.
 
Right-click on the subscription and modify its Personalization.