Performance Document Assignment Transfer HDL Question

Summary

I'm having trouble getting the PerfDocUpdate.dat HDL file to work

Content

Hello,

I've been trying to use the new HDL to transfer performance documents between assignments for users but I keep getting errors when I try to load the file.  Does anyone have an example of a working HDL file for this?

Here is my example :

METADATA|PerfDocUpdate|OldAssignmentId|OldAssignmentNumber|NewAssignmentId|NewAssignmentNumber|Operation|PersonId|ReviewPeriod|ReviewPeriodId
MERGE|PerfDocUpdate|58301-5||58301-6||ORA_LE_TRANSFER|58301||

I'm getting an error about the Old and New Assignment ID fields needing to be a whole number, but this is exactly what the assignment IDs are in our system.  Any help would be appreciated.