Object is currently locked by user 'SIRI' for BAPI_OBJCL_CREATE..?

Hi..,

When i am creating Material clssifications view (Using BAPI_OBJCL_CREATE ) for multiple different existing materials, it is returning the error like ' Object is currently locked by user 'SIRI' '.But for some materials the classification view is getting created.Only for few material classification views it is showing like that.

what would be the problem.Pls let me know..?

Thanks,

siri.