fbad_add_audience error with schema using multiple columns

[naokiohno]

I've been trying to upload customers to my newly created custom audience.

fbad_add_audience(audience_id = "621513444XXXX", schema = c("EMAIL", "FN", "LN", "CT", "ZIP"), hashes = c(df$email, df$fname, df$lname, df$city, df$postal_code))

I got the following error:

INFO [2020-10-30 23:38:55] Adding 1291670 EMAIL to 621513444XXXX custom audience ID.
INFO [2020-10-30 23:38:55] Adding 1291670 FN to 621513444XXXX custom audience ID.
INFO [2020-10-30 23:38:55] Adding 1291670 LN to 621513444XXXX custom audience ID.
INFO [2020-10-30 23:38:55] Adding 1291670 CT to 621513444XXXX custom audience ID.
INFO [2020-10-30 23:38:55] Adding 1291670 ZIP to 621513444XXXX custom audience ID.
Error: Tried to unbox a vector of length 5

I saw in the documentation that only email and phone number are mentioned as schema. Are the rest of the schema I used such as name, city, and zip code not supported in the package? Furthermore, is it not possible to match based on multiple columns? This function doesn't seem to support it.