Terms of payment key in INVOIC01 Idoc

Hi,

We are processing inbound INVOIC01 IDOC types to load suppliers invoices in SAP.

In the segment E1EDK01, the field ZTERM ( Terms of payment key ) is filled with a valid value. The problem is the invoice is created with blanks in that field, so the value of the IDOC is not transported to the invoice.

Does anyone have had a similar problem, and knows how can we solve this ?

Or does anyone has any idea of what may being heppening ? Like the need to use another segment of the IDOC or anothe issue(s) i may have attention to.

Thanks,

Paulo Sousa