Invoice not auto generate

[Pradip]

Dear please help me to setup setting in my whmcs, I have create some product and sell to client before expire system should generate new invoice and send to belongs customer but in my system its not happening. invoice is not auto generate before or after expired.

Thanks in advance

[WHMCS ChrisD]

@Pradip Welcome to the Community! Have you setup the cron as outlined at https://docs.whmcs.com/Crons#System_Cron