I am trying to setup an optional but recurring donation/contribution on a membership signup Contribution Page. Ideally, the new member will also have an option to choose frequency of payment, but we can do without.
I have tried price sets with a second membership for a "dummy" organisation for the donation bit, but it doesn't seem to give me an option for BOTH to be recurring.
When I then enable separate payments from the membership tab, I get the error
You cannot enable both Recurring Contributions and Auto-renew memberships on the same online contribution page.
Has anyone got a workaround? Any help and guidance towards the right direction is much appreciated.