Error adding an additional assignment with HDL

Summary

Receiving error when trying to add an additional assignment to employee.

Content

Hi,

  I am trying to add an additional assignment to an employee with HDL.  The current existing assignment is marked as primary and I am loading this second one as non-primary.  But I am getting  the following error: There is no primary assignment for the work relationship.  Any help would be appreciated!

 

METADATA|WorkTerms|FLEX:PER_ASG_DF|FLEX:PER_ASG_LEG_DDF|EffectiveStartDate|EffectiveEndDate|ActionCode|PrimaryWorkTermsFlag|AssignmentType|EffectiveLatestChange|EffectiveSequence|PositionOverrideFlag|PersonTypeCode|DepartmentName|BusinessUnitShortCode|LocationCode|LegalEmployerName|GradeCode|JobCode|PositionCode|AssignmentStatusTypeCode|PeopleGroup|ACAFullTime(PER_ASG_LEG_DDF=US)|ManagerFlag|WorkAtHomeFlag|WorkerCategory|AssignmentCategory|PermanentTemporary|HourlySalariedCode|FullPartTime|NormalHours|Frequency|benefitStartDate(PER_ASG_DF=Global Data Elements)|PersonNumber|AssignmentNumber|DateStart|WorkerType|customer(PER_ASG_DF=Global Data Elements)|DefaultExpenseAccount