The Field Properties of a field indicate the way in which that field will behave in the table where it resides. The properties control the look of the field, the values that can be entered in the field, and even if information can be entered in the field. Before making changes in this form, it is a good idea to take System Administration training so that you will understand the process and the consequences of actions in this area.
The values that can be changed in the General Properties will depend upon the field type. Most of the options are self-explanatory. Here are a few which you should note:
You must click Save if you make changes on this form.
Text Properties govern the way the field looks: color, font, maximum # of characters.
Lookup Properties is where you establish one of the three lookup types available in the system. Be sure you change No to Yes in the Field has a lookup? drop-down before selecting a lookup.
The link at the bottom of the properties page will take you directly into the data dictionary record for this field. If you have not taken System Administration training, you should stay away from this link as changes made here can cause significant problems if you do not know what you are doing.