Kindly note that the transaction IDs are unique identifiers for each transaction, such as an order confirmation number. They help avoid counting duplicate conversions. Use transaction IDs for tracking online and offline conversions.
- Unique transaction IDs, such as order confirmation numbers for your transactions. The transaction IDs can include numbers, letters, and special characters like dashes or spaces, with a character limit of 64 characters. They must be unique for each transaction. The transaction IDs must not include any information that could be used to identify individual customers.
For more information, I would recommend you to refer to this
help center article. According to the documentation, the transaction ID for the conversion. This field is optional but recommended. you can check this
documentation for more information. Let us know if you still have further queries.