Oliver said:

here is roughly the 2-form-setup:

form #1

• enable the multi-part form feature
• point it to form #2
• do not enable the multi-part-form setting:  'suppress email ..'
• enable custom ID's / Names under core options
• add a [id:paypal-field-id] to your "shared field"

form #2

• enable the multi-part form feature
• select 'last form' of multi-part form series
• you can enable the multi-part-form setting:  'suppress email ..'
• enable custom ID's / Names under core options
• add a [id:paypal-field-id] to your "shared field"
• enable "Send form data" under Core Form Admin and opint it to the paypal form / URL

"paypal-field-id" must be the id that can be passed on to paypal.

Oliver,

I know I'm over 2 years after the fact on this, but couldn't seem to find much else along the lines of step by step instruction.  My first question is, of course, is there an updated method?  Secondly, if this is still the correct way to do it, where do I find the "shared field?"

Thanks