system status not get updated.

hai any one can help me in this pls

my client created sevice orders in crm system and in these some details are reflected in to mobile client.There is integration between in CRM & Mobile clients.

present requirement is system status is not get updated.

user status is released.but in system status showing like 1) open 2) contains error. This is occure for some sevice orders which are created in perticular transaction type for suppose if my client created 1000 service orders in that 200 or 250 orders status not get updated.

Because of this the followup document is not created.

For temparary pupose to overcome this issue we are doing like this. There are two mandatory fields are there in that any one delete and reenter the same value then automatically the system status get updated in to release status.

where the problem whether is in configuration or it is in system

or it is some technical. Before its worked properly recently they got this issue. How can i overcome this issue permanently.