You can still modify certain details even after the sign on or sign off process has been completed. 


1. Go to Maintenance and Modify Last Sign Off/On



2. Select the applicable seafarer records using the following fields: 


3.  Once selected, the applicable Sign On or Sign Off data is shown. You can now update the specific fields as required



4. Once done, please save (CNTRL + S)


Please note that you might not be able to change the records if accounts for the specific month have already been processed and locked.