Filters if the discount is single use or not. Parameters . ( 2.7 ) . . $single_use ( bool ) Is the discount is single use or not. . . . ( int ) $ID Discount ID. . . . Hook name: edd_is_discount_single_use Hook type: filter Plugin ref: Easy Digital Downloads Sourcefile: File ref: EDD_Discount::is_single_use() – Is the discount single use or not? Description: Filters if the discount is single use or not. Parameters: Deprecated?: No API Letters: D,E,I,S,U Invokers 1 to 2 of 2 EDD_Discount::get_once_per_customer() – Retrieve the usage limit per limit (if the discount can only be used once per customer). EDD_Discount::is_single_use() – Is the discount single use or not? Implementers