Marijuana stores in Canada have been unable to meet weed demands since it was legalized in October 17, 2018.
Supply shortages have been reported in many provinces as thousands of Cannabis smokers flock to different pot stores to purchase the drug which was first banned in 1923.
A number of online stores including the Ontario government's marijuana portal warned buyers to expect shipping delays as they worked late into the night filling orders, AFP has reported.
The Cannabis Act was passed in June in a 52-29 vote by the Senate. The government of Canada then chose official date for enforcement of the bill to be 17th of October 2018.
Canada has gone on record as the first world's major economy to legalise sale of pot for recreational use. Its medicinal use was legalised in 2001.
It is second after Uruguay which legalised it in December 2013.
Prime Minister Justin Trudeau had promised to legalise weed during 2015 campaigns. He argued that laws restricting use of bhang have not been effective.
After the bill was passed, the Prime Minister tweeted, "It’s been too easy for our kids to get marijuana - and for criminals to reap the profits. Today, we change that. Our plan to legalize & regulate marijuana just passed the Senate. "
The sale is permitted to anyone who is over 18 years and he or she should not posses more than 30 grams.
About 5.4 million Canadians will buy marijuana from legal vendors in 2018 which is 15 per cent of the population, according to Statistics Canada.