sale of receivable 对 EBITDA, AR 或 CFO 有影响么？

It depends .

If  firm sells receivable to a SPE which neednt be consolidated , it will decrease the recievable on balance sheet and increase the operating cash flows. it is a off-balance item

If firm sells receivable based on its book value , it will not impact the ebitda,for such transaction does not influence the operating profit.

如果是出于分析考虑的话，要从CFO减掉，加回到资产和负债中。