If the Insider tag is not initialized, there could be several potential causes:
Incorrect implementation
Ensure the Insider Tag (ins.js) is correctly implemented on your website according to Insider's integration instructions.
Multiple domains
If you have multiple domains, verify that the Insider tag is correctly deployed on all domains.
Cookie acceptance
Check if cookies need to be accepted for the Insider tag to initialize.
GDPR opt-in
If the Insider Object > user > gdpr_optinvalue is set to false, it will prevent the Insider tag from initializing.
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If none of these reasons apply, contact the Insider One team for further assistance.