"Your custom data has an invalid format." means that your application sent UserGuiding JS client a different data type than you've set in your dashboard.

To fix this, ensure you're tracking data in the same exact format you've set in your custom attribute.

There are 4 possible data types;

1-) Text
2-) Number
3-) Date
4-) True/False

Related Articles:
Creating Segments
What is Custom Attribute?

Creating Custom Attributes


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