Add a value to an existing value in a table via a form

Hi, I try to add a value to an existing value in a table via a form. I use the 'Update or Insert' option for the Automation on a ADD button and for the new value I tried using
Take data from
=tblGreenCoffee[weight] + $[weight content]
and write to
=[weight]

I do not get the dot next to =tblGreenCoffee[weight] + $[weight content] so here there seems to be something wrong.

If I only write
Take data from
=$[weight content]

the entered value is stored, but I want to add the new value to the old value first !!!!!

Thanks in advance for the support !!!!
Kind Regards
Koen

Hi @Koen-18df,

Thank you so much for your post and welcome to the community!

We are looking into this further, I will follow up with a response tomorrow.

Here is an article that might help in the meantime-

Thank you,
Evelyn