Technical references : Administration : Server Hardening : Encoding Planon data in HTML mail merge
Encoding Planon data in HTML mail merge
You can encode Planon data for mail merge HTML reports as a security measure against cross site scripting. This way of encoding can change the result of the HTML mail merge report. For this purpose, the setting Encode Planon data in HTML mail merge Yes/No is available in System Settings. By default, this setting is set to Yes. It is strongly recommended not to change this.
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See System Settings for more details, examples and information on the consequences.