Ok, so let's back up. The URL that you're wanting to build - how are you planning to use that? If you're wanting to connect to an external system using their API and then use the response to Post data back to Quickbase, you'll have to use Pipelines or similar automation service to do this. If you use Pipelines, you don't need to build a Formula Text field to generate the URL on the table, you can just build that right in the Pipeline setup.
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Blake Harrison
bharrison@datablender.io
DataBlender - Quickbase Solution Provider
Atlanta GA
404.800.1702 /
http://datablender.io/------------------------------