The Crown summary of facts states on August 4, 2020, Customs intercepted a package from France addressed to Peipi which contained a vacuum sealed bag of cream crystalline substance.
After weighing and testing the contents it was discovered to contain 54 grams of MDMA, with an approximate street value of $10,800.
Peipi acknowledged he was aware the package was coming and admitted he had agreed to tell a co-offender when it arrived at his house.
Police searched Peipi's house on October 16, 2020, and seized his cellphone.
A Facebook messenger app showed Peipi and his co-offender had been offering to sell the drugs to contacts.
The LSD was referred to as "trips" while the MDMA was also called MD and caps and was being sold in grams, half grams or 0.1 gram caps.
In a seven-day period, October 9 to 15, 2020, the pair offered or supplied 5 grams of MDMA, with a street value of $1280, and two tabs of LSD valued at $80.
Police seized a second cellphone belonging to Peipi when he was arrested on February 15, 2021.
He unlocked the phone for officers and further offers to supply MDMA were discovered.
Judge Krebs convicted Peipi on his guilty pleas and remanded him, on bail, to reappear for sentencing on May 24.
The charge of importing MDMA will be withdrawn at Peipi's sentencing.