You can capture more information about your supplier record using the Custom fields on the Custom tab of a supplier record.
There are 4 major custom field groups which are:
User Characters allowing 20 alphanumeric character entry.
There are 8 user character fields that can be set up.
User Numbers allowing 14 alphanumeric character entry.
There are 3 user number fields that can be set up.
User Dates which allows you to select a specific date.
There are 3 user date fields that can be set up.
User Flags which allow you to have a checkbox against date or records.
There are 3 user flag fields that can be set up.