3 participant per study. Is it worth running at all?

Good morning,

I plan on running an online shop-along to observe how users interact with our website. I asked for 7 users but the management approved the budget for 6 and wanted to split the 6 into two tests. One for child company a, the only child company b (they both sell similar products but under two different brands). I suggested doing this only for one brand but was rejected.

I don't think 3 is enough, to observe patterns with enough level of confidence. But don't want to lose this opportunity.

Any suggestions?

Thanks very much!