An issue about APD（ Analysis Processing Designer) of BW

Hi Experts,

I face a very strange issue, the data in DSO(direct updated) which extract data from query via APD are less than that in query(there are 5000 more data in query, but only 500 more data written to DSO), it's not the key issue, so who can tell me the root cause of this case, the job log of APD shown in the screen shot for your reference.

Best regards

Harry