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Bug in Facebook Custom Conversion Tag Template

Bronze Contributor
Bronze Contributor

Hi!

I think there is a Bug in the new Facebook Tag - if you add a Custom Conversion, the guard for standard_events_lookup[event_name] only adds "Custom" to the event_tracking_type but does not protect the following code from accessing the undefined fb_params property of standard_events_lookup[event_name], leading to a JS error and the Custom Event not firing. 

Screenshot 2020-11-09 101352.png

Moving the for-loop into an else-block of the guard works at least as a temporary workaround. 
Is this a Bug or am I using the Custom Event Mapping wrong?

All the best,
Felix

2 REPLIES 2
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Bug in Facebook Custom Conversion Tag Template

Community Manager
Community Manager

Hi @FelixHartmann ,

Thanks for reporting this issue. Your work-around might fix the problem, but before you edit the tag template I recommend you use the Tag Status Checker to see if there is a newer version of that tag. My team told me that this bug has been fixed, so I suspect that might have an older version of the tag.

Let us know if that works.

Remember to "Accept as Solution" when your question has been answered and to give kudos to helpful replies.
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Bug in Facebook Custom Conversion Tag Template

Bronze Contributor
Bronze Contributor

Hi Justin!

Indeed there was a new Tag Version, thank you - it has the same Change I did as my "workaround" but nonetheless good to be back on the official Template.

I had expected the tag to be the newest Version, because it was implemented just 4 days ago, but I think it might have been copied instead of being newly created... :)