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Formerly Office 365, is a line of subscription services offered by Microsoft which adds to and includes the Microsoft Office product line.
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How to open external Link correctly defined in "helpurl" property for custom function - Microsoft Q&A
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Michael Lu
10
Reputation points
Our company is developing a excel online addin. We try to register into MS store but we are asked to provide help document for custom functions.
We follow the MS document to provide help information by setting "helpurl" in functions.json. We test the excel addin in Excel desktop, the help document can be opened in chrome. But the help document fail to open correct web site when we try to open the help in excel online. We think it may be a bug since the "helpurl" can be external link as the document said (https://learn.microsoft.com/en-us/office/dev/add-ins/excel/custom-functions-json#json-metadata-example)
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(169.60000000000002, 64%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EM%3C/text%3E%3C/svg%3E)
mh 0 Reputation points2023-10-14T01:25:33.2633333+00:00 I have also experienced similar behavior.
Help documents can be opened in Excel Desktop, but not in Office Web.
In my case, when I click "Learn More" in Office Web, there is no response and the pop-up window does not open.
However, when I apply to register an Office add-in, the validation report states that clicking "More details" opens a pop-up window that says "Help is not available."
The behavior seems to vary depending on the environment.
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