In future, batches are to be managed uniquely at client level
while doing goods issue and intial stock posting. i am getting this message.how to clear this.kidly give your suggestions.
As per error you are getting it seems some might have changed the batch management level activation.
check this in customizing
SPRO->Logistic general->Batch management->Specify Batch Level and Activate Status Management->Batch level.
It seems earlier it was maintained at material or plant level some one might have changed it check the same.