Modify activity-date : validation and guidance Bill Anderson June 29, 2020 09:41 Follow At least one occurrence of activity-date is MANDATORY All activities MUST contain a start date: either planned or actual Have more questions? Submit a request 2 Comments Date Votes 0 Mark Brough February 27, 2014 18:02 Agree with the aim. However, we don't want to discourage pipeline/identification-stage projects from being published (where a start date may legitimately not exist). Strongly support these tests for all stages except pipeline/identification. 0 Bill Anderson February 28, 2014 12:47 Why can't a pipeline activity have a planned start date? Article is closed for comments.