For every contact you store in Enudge you can records information in the following standard fields: 

Email Address - up to 80 characters
​Mobile - the digits of the mobile number, which should preferably start with the country code e.g. +61411123456
​Firstname - up to 40 characters
​Surname - up to 40 characters
​Reference - up to 20 characters
​Salutation - up to 60 characters  
​Gender - m or f
​Year of Birth - just the four digit year as a number
​Organisation - up to 150 characters
​Department - up to 150 characters
​Position - up to 100 characters
​Street - up to 50 characters
​City - up to 25 characters
​State - up to 35 characters
​Postcode - up to 12 characters
​Country
​Fax - up to 15 characters
​Business Phone - up to 25 characters
​Home Phone - up to 25 characters
​Custom1 - up to 255 characters
​Custom2 - up to 255 characters
​Custom3 - up to 255 characters
​Custom4 - up to 255 characters
​Custom5 - up to 255 characters
​Custom6 - up to 255 characters
​Custom7 - up to 255 characters
​Custom8 - up to 255 characters
​Custom9 - up to 255 characters

Custom10 - up to 255 characters

Custom11 - up to 255 characters

Custom12 - up to 255 characters

Custom13 - up to 255 characters

Custom14 - up to 255 characters

Custom15 - up to 255 characters
​Password - used to allow a contact to manage their own subscription
​Notes - up to 255 characters

Each contact can also be associated with unlimited categories to help you quickly attach one or more categories of contacts to your campaigns. 

If there is a piece of information that you want to store in order to personalise your messages, use one of the Custom fields.  For information on how to give your custom fields a meaningful name read: Labelling your Custom Fields.

If you run out of custom fields, you can upload the extra field into a specific email campaign.
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