Summary: We are adding an additional restriction to input contracts for data actions. Input properties will only be allowed to contain alphabetic (a..z,A..Z), numeric (0..9), hyphen (“-“), and underscore (“_”) characters. Property names must start with an alphabetic character. We are making this change because variables that do not follow this convention are incompatible with action templates.
Impact: Any custom data actions with input contracts using property names containing restricted characters will need to be cloned and modified to use a different name. Actions that continue to use property names containing restricted characters will fail due to failing input validation.
Date of Change: On or after February 11, 2019
Impacted APIs: Data Actions API