Hyperbytes and Antony are discussing something called a upsert action but there was a typo making it upset so just a playful reply from Antony 
If a upsert action existed in Wappler the update and insert would just be done at the same time making it easier but as it doesn’t yet exist in Wappler you normally would do something like TMR mentions where you use a condition step to check if a id is present or not.
Here is the feature request for upsert