This Halacha is an excerpt from our Sefer
Buy me here or on Amazon.com
Shehechiyanu by Candle lighting and Kiddush:
We do not recite Shehechiyanu during Kiddush [or candle lighting] of Shevi’i or Acharon Shel Pesach.
 Admur 490:12; Michaber 49:7; Sukkah 47a
Discussing Shehechiyanu: The Rebbeim made a point of discussing the idea of omitting Shehechiyanu on Shevi’i Shel Pesach, hence implying a connection, at least through Torah, of Shehechiyanu to the day. [Otzer p. 218 based on Sichas 1983 Acharon Shel Pesach]
 The reason: As Shehechiyanu was already recited on the first two nights of Pesach. [Admur ibid; See Likkutei Sichos 37:14]