How to calculate the sum of a variable in a mrvs and assign the value to a catalog item variable.

AronetteG
Tera Contributor

In particular I want to calculate the sum of the gift_amount_numbers_only variable entry(ies) on submission of the catalog item request, and assign the sum value to  the gift_transactions_grand_total catalog item variable.  The variable set name is donation_transaction_information.

 

I am very new to scripting and really need detailed assistance on how to accomplish this. 

1 REPLY 1

AronetteG
Tera Contributor

Additional screen shot.