Developers MCE-Dev-201 Reddit Questions

In Salesforce Marketing Cloud, access tokens are valid for one hour (D). After one hour, a new access token must be obtained to continue making API calls. This ensures security and helps manage the lifespan of tokens effectively.

After using LookupRows to retrieve data when building a dynamic email, the next step before using this rowset within a FOR loop is to use RowCount to ensure the rowset contains data (D). This validation ensures that there are rows to iterate over, preventing potential errors or empty iterations in the FOR loop.

Example:

SET @rows = LookupRows("DataExtensionName", "FieldName", "Value") SET @rowCount = RowCount(@rows) IF @rowCount > 0 THEN FOR @i = 1 TO @rowCount DO SET @row = Row(@rows, @i) /* process each row */ NEXT @i ENDIF

To retrieve daily JSON data from a customer's API and write it to a data extension, the developer should use the following set of Server-Side JavaScript activities:

Platform.Function.HTTPGet(); - To make the HTTP GET request to the customer's API and retrieve the JSON data.

Platform.Function.ParseJSON(); - To parse the retrieved JSON data.

Platform.Function.UpsertData(); - To upsert the parsed data into a data extension.

Example code snippet:

var response = Platform.Function.HTTPGet(" "); var jsonData = Platform.Function.ParseJSON(response); Platform.Function.UpsertData("DataExtensionName", ["PrimaryKeyField"], jsonData);

When the subjectLine variable is declared in multiple locations throughout the email, the value used at the time of deployment will be the last value assigned to the variable. In the provided declarations, the last assignment is:

%%[ SET @subjectLine = 'Enjoy 20% off today' ]%% was declared within the Subject Line

Therefore, the subject line used at the time of deployment will be "Enjoy 20% off today" (C).