First entry after getting multiple entry visa

[ms45]

Hello,
Just wanted to know , how soon do my parents need to travel, after they receive the visa to Canada? Does the first entry need to be within a certain number of days after the visa is received? My parents can come to Canada, around November this year, but I was planning to get the visa processed next month ,when I will be with them to help them out with the formalities and the medical check up, required for Canadian multiple entry or supervisa .
And then , they could travel after November this year. Please help. Thanks in advance.

 

[scylla]

Their first entry can be whenever they want it to be. There's no requirement to enter within a certain number of days.

 

[ms45]

Thank you