Salesforce MCE-Dev-201 Exam With Confidence Using Practice Dumps

To aggregate monthly energy usage data stored in variables for each month, you should use the ADD function in AMPscript to sum up the values. The ADD function can be nested to handle multiple values.

AMPscript Example:

%%[ SET @total = ADD(@jan, ADD(@feb, ADD(@mar, @apr))) ]%%

Salesforce AMPscript Functions - ADD

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

Regarding Populations in Contact Builder:

Populations need to be added to an Attribute Group (B) - This is necessary to define the relationship between the population and the associated data extensions and attributes.

No more than three Populations should be created (C) - Creating more than three populations can lead to performance issues and complexity in managing contacts.