As you know using the whatsapp url scheme on iphone i can create the following link:
href=\"whatsapp://send?text=blahblah\"
this is possibl
Was working on the same Problem and found the solution:
href="intent://send/[countrycode_without_plus][number]#Intent;scheme=smsto;package=com.whatsapp;action=android.intent.action.SENDTO;end
With a telephonenumber(+49 123 456 78)
href="intent://send/4912345678#Intent;scheme=smsto;package=com.whatsapp;action=android.intent.action.SENDTO;end