Hi All,
I have created a survey for our forestry department and keep getting this error when I test the survey. The Calculation that is giving me trouble is: concat(substr(${LAT},0,2),substr(${LAT}, 3,5),substr(${LONG},1,4),substr(${LONG},5)). PDD_ID is a unique identifier for the department and is how they identify the area or block they are surveying.
Typically the error arises when I added in the last Substr. In and of itself, the substring calculations work as do the concatenations. It seems as though the error is happening when they are combined. 
What I have done:
I have lengthened all fields to an appropriate size in both Survey123 and ArcGIS Pro.
I have created fake fields and tried the same calculation, while also breaking down the calculation.
I have attached a copy of my XLSX. Is there a work around for this? It feel as though I have tried everything.
Thank You in Advance