Infusionsoft Tags versus Custom Fields
I was doing some research for a client and ran into this short article on the Infusionsoft blog that in one place gives you a good explanation on using tags versus custom fields. Click here to get right to it. Choosing which one of these to use is not 100% straight-forward, especially if you are new to Infusionsoft.
There are times when based upon your requirements, both of them are equally well suited. However, understanding things like the 100 custom field limitation and that only tags can be used to trigger a campaign should play a strong role in your decision making. You don't want to choose the less appropriate option only to realize months down the road that future efforts could have been made much simpler if you had gone the other way.