https://community.developer.cybersource.com/t5/Integration-and-Testing/Card-Present-Track1-Data-Format-Issue/m-p/36113#M20115 <P>I believe the documentation will be updated at some point but there is a very critical point to be made in regards to track1 data. Using a standard magtek card reader, the track1 data is read with a lower case 'b' as the 'format code' right after the starting sentinel.</P><P>&nbsp;</P><P>The CP API does not like the lower case 'b'. It will return with a error stating 'Invalid Track1 data format'.</P><P>&nbsp;</P><P>Simply upper case the 'B', and the transaction will get accepted.</P><P>&nbsp;</P><P>Hope this saves you 4-5 hours of frustration.</P> Mon, 07 Oct 2013 21:56:57 GMT BGArts 2013-10-07T21:56:57Z https://community.developer.cybersource.com/t5/Integration-and-Testing/Card-Present-Track1-Data-Format-Issue/m-p/36113#M20115 <P>I believe the documentation will be updated at some point but there is a very critical point to be made in regards to track1 data. Using a standard magtek card reader, the track1 data is read with a lower case 'b' as the 'format code' right after the starting sentinel.</P><P>&nbsp;</P><P>The CP API does not like the lower case 'b'. It will return with a error stating 'Invalid Track1 data format'.</P><P>&nbsp;</P><P>Simply upper case the 'B', and the transaction will get accepted.</P><P>&nbsp;</P><P>Hope this saves you 4-5 hours of frustration.</P> Mon, 07 Oct 2013 21:56:57 GMT https://community.developer.cybersource.com/t5/Integration-and-Testing/Card-Present-Track1-Data-Format-Issue/m-p/36113#M20115 BGArts 2013-10-07T21:56:57Z