How To Fix UCS0027 - Status changes are currently not possible

UCS0027 - Overview

• Message type: E = Error

• Message class: UCS0 - Messages for Status Management

• Message number: 027

• Message text: Status changes are currently not possible

What causes this issue?

This message can occur when there are competing write accesses to status
tables. For status changes, the system locks entries in the status
tables exclusively for a short timeframe, so that multiple users cannot
simultaneously change the task status.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

This case should not occur, or only very rarely occur, in live
operations. In particular, this can only occur when many users
simultaneously access the status tables (for example, during data
collection).
If in doubt, repeat the task execution or the save operation.
If an exclusive write lock persists more than a few minutes and this
message reappears or appears constantly, then most likely a
status-writing process has been terminated (due to external factors)
while this process was exclusively locking the status table.
In this case, delete the lock entry manually using transaction SM12. To
find the lock entry, search for table name "RSTAB" using lock argument
"MON" and leave the user name field blank.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UCS0027 - Status changes are currently not possible ?

  The SAP error message UCS0027, which states "Status changes are currently not possible," typically occurs in the context of status management within SAP systems, particularly in modules like SAP Project System (PS) or SAP Plant Maintenance (PM). This error indicates that the system is preventing a status change for a particular object (like a project, order, or maintenance task) due to certain conditions not being met.
  Causes:
  
  Locked Status: The object may be in a status that does not allow for further changes. For example, if a project is completed, it may be locked from further status changes.
  Dependencies: There may be dependencies or prerequisites that have not been fulfilled. For instance, if a predecessor task is not completed, the subsequent task may not be allowed to change status.
  User Authorizations: The user may not have the necessary authorizations to change the status of the object.
  System Settings: Configuration settings in the system may restrict