I volunteer for a german NGO and we want to enable our members to easily update their yearly payment. We have the following:
- A working installation of CiviCRM (v4.5.6)
- A membership type we're interested in
- A priceset assigned to this membership type
- A custom field for the value of the selected price
I try to build the following:
A simple form, which allows existing members to update their selected price (the custom field) from the given priceset. This requires a valid login, if there is no active session, a login screen should be displayed. The form will be embedded in an iFrame or similar.
I tried working with profiles and contribution pages but to no avail (as it is not setup as a recurring payment but rather a custom field). I found the Webform module and its CiviCRM integration but I'm not sure if that really is what I'm looking for.
Looking forward to any hints! Thanks so much.