50529: Content variables are too long

ERROR: 50529

CONVERSATIONS

ERROR

Description

Allowed total length for message content variables is sum of key, value and JSON-specific characters' lengths.

Possible Causes

Either too many variables are defined (max 100 in total), or too long keys (max 16 characters per variable), or too long values (max 256 characters per variable).

Possible Solutions

Follow the length limitations:

variables: 100 in total;
key: 16 characters per variable;
value: 256 characters per variable.