I have a Marketing Cloud Journey to be triggered via API for real time email sends when the customer make a specific action. At the same time, on the email that will be send via the API Journey, there must be elements included in the API call, for example a personalized URL to be send in the email to the corresponding Contact. Ι need additional personalization data for email and based on an older answer they wrote to me whatever it needs pass it in the API call as a separate attribute/payload .
My question is , if we proceed with this option, we can have the attributes to be used in the email within the initial API call that will trigger the Journey ? This only mean that within the API call pointing to the Journey Entry Source endpoint, a separate payload should be included so that we can fetch those data and trigger the Journey via the same API call ? If this is the case and we fetch those data in the same API call, how do we add those attributes in the email used in the API Journey?