There is no technical limit to the total attached file size, so yes, you can put in a ticket to be contacted by Sales to see what the cost will be to add attached storage or else just go into your account settings and see what the prices are for additional file storage.
Then you can compare that cost to the Juiced cost or the value of your time and effort to try a DIY solution with Pipelines.
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Mark Shnier (YQC)
Quick Base Solution Provider
Your Quick Base Coach
http://QuickBaseCoach.commark.shnier@gmail.com
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