Stored document &1 was subsequently changed

What causes this issue?

To enable the document to be checked, when the IMG activity
<DS:SIMG.VC_COCF_CU_SRTYP>Define Shift Report Types </>was being carried
out, the <LS>Check </>indicator was set for the relevant <LS>shift
report type</>.
The checking of the loaded document revealed that the document had been
changed subsequent to the time of its creation and saving.
This fact is brought to the user's attention through this information
message. If the <LS>type </>of this message is to be changed (for
example, to <LS>error</>), maintain the corresponding entry in
<DS:TRAN.OPJB>transaction OPJB</>.

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

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.