Personalization field data types in WhatsApp communication

Each personalization field definition specifies the type of data that Deliver substitutes for the personalization field when you run the mailing. Data types for personalization fields are defined as either numeric or string.

The data type for system defined personalization fields (Built-in and Constant fields) is set automatically to string and cannot be changed.

The data type for OLT personalization fields can be either numeric or string. Deliver automatically designates the data type for OLT personalization fields according to the data type of the field in the marketing database that provides the recipient information. However, you can edit the data type designation for OLT personalization fields if required.