- To unlock the SAP system, enter the following commands (here or DEFAULT.TPP is the transport profile of the transport domain to which the system is connected): The system may be either the original SAP system or the shadow system, depending on which one the error occurred. 
- Original SAP system
- cd \\abap\exe 
- tp unlock_eu pf=..\var\DEFAULT.TPP 
- Shadow system
- cd \\abap\bin 
- SAPup unlockshd
- Log on to the SAP system or shadow system and correct the error.
- To lock the original SAP system or shadow system again, enter the
- following commands:
- Original SAP system
- cd \\abap\exe 
- tp lock_eu pf=..\var\DEFAULT.TPP 
- tp locksys pf=..\var\DEFAULT.TPP 
- Shadow system
- cd \\abap\bin 
- SAPup lockshd
How to unlock the SAP system to perform correction(s) during an upgrade 1901463
 
