Diagnosis
As per configuration in view V_T5MLTR, leave type &V1& denotes secondlevel transfer. By second level of transfer we mean transferring thosevacation days which are already transferred from some other leave type.
In PBS systems there is no concept of second level transfer. Here, theleave days that are transferred remain valid for all the coming yearsuntil they are used by the employee.
But, in the SAP system, the transferred leave days are valid only fornext vacation year, as per legal interpretation. After that, even ifthey are not fully used up by the employee, they are no longer availableto the employee. For example, after some employees have continuouslytransferred leave days to the next year, they have enough leave balanceso that they can even transfer their already transferred leave balances.For this reason SAP has specified the second level transfer.
As PBS does not recognize this, this data is not sent to PBS. This canlead to inconsistencies between these two systems when the employeestarts transferring the leave types that have already been transferred.

Procedure
To preempt the inconsistency when doing second level transfer, youshould check the need for manually adjusting PBS accumulators and adjustthem, if necessary using IT 578.