I have a url field that goes to an external page to create a pdf, couldn't find a way to create the complicated pdf inside SugarCRM.
Is there a way to convert this link to button so it looks more user friendly?
Your post brings up a number of questions, like what version you are working with and why the default link isn't working for you.
Off the top of my head, if the link isn't work you have options with create your own link field formatter with a SugarFields.
I am working on 220.127.116.11 On-Demand.
The link works fine but I would prefer to have a button as it would look better on screen
That helps, for me (and this is matter of opinion) I will create a custom Link field that gives me control over how I want it to look.
I don't know what you want it to look like but your needs are straight forward and there are a ton of sidecar examples for "fields"
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