SAP Message 12190 - Batch &1 of material &2 is already locked by user &3

Diagnosis
Batch &V1& of material &V2& is currently locked andcannot be edited. The lock was set during editing of another batch ofthe material &V2& to ensure that the batches of this materialare classified consistently.
There a various classified batches for material &V2&, whichitself is not classified. At least one of these batches is being editedin a parallel session, whereby the system set a lock for batch &V1&. This lock should prevent different classes from being assigned tothese batches as a result of simultaneous editing of batches ofmaterial &V2& in various sessions.

Procedure
Finish editing all batches of material &V1& in parallelsessions.