¿Sending WhatsApp from sheets row?

[alehatz]

Greetings from Argentina: I am making my app and I have something unresolved.
I would appreciate any help. Thank you very much in advance for your time.
My intention when sending by WhatsApp from AppSheet, is that when entering a line (img 1 you can send the total content of that line (img 3) and when sending select within the contacts in a stored sheet.
In summary: Select a line in the app, when viewing its content, send it by WhatsApp, previously choosing the contact from a list.
Thank you very much again for reading my message.
Regards!

img 1 row Pendiente

img 3

[Marc_Dillon]

Delete the first closed parenthesis, and the 2nd open parenthesis.

https://help.appsheet.com/en/articles/2347638-concatenate