I think that nobody would want to do that for just one business card, so I suppose, you actually want to create a business card template.
Automatic filling of data...hmm...should be possible with DataMerge: InDesign: Serienbrief und Etiketten mit der Datenzusammenführung (Data Merge) « www.mediengestalter.lu (german)
I'm creating a business card and wants to be able to update one text field and have the rest test to auto fill or update.
Isn't there a way with text variable? Do I need to install a plug-in?
Thanks for your help.
In the context of business cards, I think most would envision your "text field" being a piece of data that's different on each card, (e.g., name, phone#, etc.); but the language of your post seems to be asking about something that is the same across a batch of cards, and you want to "sync up," or change-one/update-many. For that you could use the Content Collector tools.
Yes, I am trying to make a template and will look into the data merge feature. Thanks.