What type of SLA - overall, stage, assignment, etc? The data for overall work object SLAs would be on pyWorkPage. Stage SLA data would be on pyWorkPage.pxFlow(pzInternalStageFlow). Assignment SLA data would be newAssignPage.
Overall SLA. On pyWorkPage I see pySLAGoal and pySLADeadline as DateTime, which are already calculated based on business calendar, but I need interval value, before calculating pySLAGoal and pySLADeadline, in order to execute my own SLA adjustment.