Issue
Error "Unable to update XML. An error occurred while parsing EntityName. Line 1, position 116" occurs when updating XML by using Update XML action if the special characters such as an ampersand "&", less-than sign "<" or greater-than sign ">" are included.
Resolution
Encode the special characters such as ampersand "&" to "&", less-than sign "<" to "<", greater-than sign ">" to ">".
Error Code
Unable to update XML. An error occurred while parsing EntityName. Line 1, position 116