Mapping issue

Hello,

I am using PI 7.3. This is a file to IDoc Scenario. I am getting the following error message:

Details: com.sap.aii.utilxi.misc.api.BaseRuntimeException; An invalid XML character (Unicode: 0x12) was found in the element content of the document.

I have already checked in the source payload that no "#" value is present there. This is a huge file. How to check for which field value this error is occuring?

Please advise.

Thanks & Regards,

Moumita