Failed to parse body typically means there is an error in the "Body" section of your HTTP API enrichment. Check for these common errors:
Ensure that your key is surrounded by double quotes. If you're using a dynamic column as your value, you shouldn't include any quotes around the dynamic column tag. If you need to combine plain text with a dynamic column tag, create a Formula column that combines them first, and then include that column (without quotes) in your body tag.
Ensure that your keys are separated by commas.
If you're still seeing this error, we've found that copy/pasting your Body JSON into ChatGPT can sometimes help solve the error.