If you dont finish the hourly by the top of the next hour, the unfinished batches will roll over into the next hour (unless it's the last CAF of the day; the 5's or 7's depending on store). As stated before, this does impact your myperformance metrics, specifically 'CAF Pull Timeliness', and in my store, we unoffically term it 'going red'. Try your best to avoid this like it's the plague. At my store, if we are unsure if we're gonna finish on time after half-past, we call the LOD to get other BR-trained guys to jump in the batches. Also, some helpful advice: at the top of each hour, check the replenshiment workload tool on workbench to find out how big the CAF's are estimated to be, and where the biggest batches are. This can be a huge lifesaver, esp. during Q4. Hope this helps!