Hi guys,
While working on bbs i am trying sort and group by rebar number and quantity but same rebar number elements are not scheduling in that particular row it is separating out, but I want them together. do anyone know about to solve this.
I have attached some snips for better understanding. 
Hi Suskumar,
Try changing "Sort By" to Rebar Number and then uncheck the "Itemize every instance" in Sorting/Grouping Tab (see snap). Hope this helps.
I would have stated exactly the same as @eomega5DEMF
Also that if you are sorting by multiple categories and there are differences in values it will create a individual reference so if you are sorting by quantity and Bar Length this could also influence the output as you are calling out different information, for example if you do have different quantities and use the method as @eomega5DEMF mentioned you would get <varies> where differences occur so as you do not have these there is another level of sorting going on
With quantity now included its add multiple references as you see
