Message type: E = Error
Message class:  CNV_CDOP_CA - CDOP Clearing Analysis 
Message number: 176
Message text: There are activities which are currently running
You have chosen to start an activity in an Ad-Hoc mode. However, there
is already an activity which is currently Running
In the Ad-Hoc mode, it is only possible to execute one activity at a
time.
You must wait till the activity reaches the Finished or the Aborted
state.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_CDOP_CA176, which states "There are activities which are currently running," typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there are ongoing activities or processes that are preventing the current operation from proceeding.
Cause: Ongoing Processes: The most common cause is that there are other data migration or conversion activities currently running in the system. This could be due to multiple sessions or jobs being executed simultaneously. Locks: The system may have locks on certain tables or resources that are required for the operation you are trying to perform. Long-Running Jobs: Background jobs or processes that take a long time to complete can also lead to this error if they are still active when you attempt to start a new process.
Solution: Check Running Processes: Use transaction codes like SM37 (Job Monitoring) or SM66 (Global Work Process Overview)
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