SAP - Watching the 154 level after today's dip

Interesting close on $SAP today, dropping to 154.34. It's dipping just below what I've had marked as a pretty significant support level around 155 for a while now. The intraday low was 154.33, right on it. I'm curious to see if this holds up as a retest or if we're looking at a breakdown from here. A sustained move below 154 could open up some downside toward the low 150s, perhaps even 148, which would certainly invalidate any immediate bullish outlook I might have had forming on the daily chart. Conversely, a strong bounce back above 155 on increased volume tomorrow would be a good sign.