Error 21656
Product: Programmable SMS
ERROR - 21656
The ContentVariables Parameter is invalid
The ContentVariables you are using are not valid The ContentVariables Parameter is invalid
Possible Causes
The ContentVariables Parameter is not a JSON String.
A ContentVariables variable placeholder is improperly formed e.g. {{example}.
A ContentVariables variable placeholder is an "empty mustache" e.g. {{}}.
Possible Solutions
Validate the ContentVariables Parameter, it must be a JSON String