PAYE61125 - Employment maintenance: create employment: work item 18 - P46 box B - live primary - secondary at same EMP REF
Work item 18 is created when a form P46 class B is processed, there is already a live primary and secondary employment on the individual’s record and the form P46 received matches the secondary employments PAYE reference and works number but does not match the live primary employments PAYE reference or start date.
The form P46 class B will not automatically create a period of employment on the individual’s record until it can be determined whether the primary employment or the employment prompting the form P46 work item commenced first.

