In this documentation we sometimes refer to the "Codes Table": it provides a list of IDs that are needed in several API calls:
Recipient field codes
Recipient fields, also called personal data fields, are defined in your MailUp admin console under Settings > Account settings > Recipient Fields. By default, you can define up to 39 custom fields.
The Codes Table can be accessed in your MailUp admin console by navigating to Settings > Advanced settings > Developer's corner > Codes Table. Here is an example of the section that describes the personal data fields.
Due to a technical restriction, in the API calls you have to use the Italian prefix "campo" instead of "field" (i.e. use "campo1", not "field1"). "Campo" means "field" in Italian.
Some IP calls require the List GUID. You can locate it by navigating to the Settings > Advanced settings > Developer's corner > Codes table page in your MailUp admin console.
Here is an example of how this page looks like.
Personal data fields
Personal data fields (also called recipient fields or dynamic fields) store information about your recipients. There are three types of fields: