AutoBill.update and AutoBill.addCampaign may be used to apply a Campaign discount to an existing AutoBill. With these methods, Subscribe will automatically apply the Campaign discount to all eligible Products and Billing Plans that do not yet have a discount applied.
For more information on discount calculation, see Campaigns in the Subscribe User Guide.
If there are any eligible Products on an existing AutoBill, a Campaign discount may be applied toward it, regardless of the history of the AutoBill, or the length of its duration.
Note: For rolling promotion campaigns spanning multiple billing periods, the billing terms must be homogeneous. You cannot offer a rolling campaign if the Billing Plan has varied term lengths. Free cycles are ignored.
- Applying a Campaign Code to an existing AutoBill
- Applying a Campaign Code to a Specific Product on an AutoBill