By the use of conditions in Webhook action after submit, you can let the form execute the webhook action only when the specified conditions are satisfied.
You can specify the condition(s) in the expression textarea. You can specify multiple expressions (one condition per line), where they are and-connected, which means the action will be executed only when all the conditions are true/satisfied.
For instance, you can set the Webhook action to execute only when the customer age input value set in your respective age number field is more than or equal to 18.
You can ask a question and get an answer via a select field to make a decision whether to execute Webhook or not, based on value.