Status QM* for a work order from FM: STATUS_READ_MULTI.

Hi All

We are calling the function module

CALL FUNCTION 'STATUS_READ_MULTI'
     EXPORTING
       client                     = sy-mandt
       only_active                = 'X'
       all_in_buffer              = 'X'
*     GET_CHANGE_DOCUMENTS       = ' '
*     NO_BUFFER_FILL             = ' '
      TABLES
        objnr_tab                  = gt_objnr
        status                     = gt_status

gt_objnr contains two entries:

OV*1

OV*4. These are operation statuses.

In the gt_status, we are getting a range of values:

1) OR*.I believe these are order status.

2) OV*. This should be operation status.

3) QM*. NOT SURE WHAT ARE THESE STATUSES FOR???

Can anyone please tell me what does QM* statuses stand for.

Thanks in advance.

Harsh

PS: '*' indicates a range of characters.