Failed to calculate error

[NLCCouncil]

Hi All i am using caculated espressions to auto pull user details into seperate holding fields different from the system last edited fields. 

Whenever i work in offline mode I and try to create a new feature I get "Failed to calculate" on that field in field maps ad can't save a record.   FYI its pulling GetUser($layer).fullName   pulling the username works offline.   so to try to solve it I added a small bit to try to return hard coded text or NULL if it can't calculate but I still get can't calculate error. 

I've tried it like this: 

var fullname = GetUser($layer).fullName

if (IsEmpty(fullname)) {

     return "Empty"

 } else {

     return fullname

 }  

[KenBuja]

Does this null check work instead?

if (IsEmpty(GetUser($layer))) return "Empty";
return GetUser($layer).fullName;

[NLCCouncil]

Same as my testing it works when online but as soon as am in offline mode even your script still fails with 'failed to calculate' see attached screenshot

[DougBrowning]

Fullname does not work offline yet if I remember right - it was talked about at UC.  See this post.  https://community.esri.com/t5/arcgis-field-maps-questions/getuser-when-offline-and-disconnected/td-p... 

[NLCCouncil]

Thanks 🙂  i realized it's an issue with offline mode however shouldn't I still be able to use an arcade expression to tell it if I can't calculate then return null or another set string of text.  ??

[DougBrowning]

Use Console() to see what GetUser($layer).fullName is returning.  It may not be empty it may be an error string or something.