mapping data to invoic02 IDOC

i have some test data and want to test it in we19 with invoic02 idoc...i m not able to find appropriate fields for my test data ....

Co Code

Fiscal year

Doc Type

Doc Date

Posting Date

User Name

Reference

Currency

Line Item

Posting Key

Vendor

Amount in Local Currency

Amount in Document Currency

Payment Term

Posting Key

G/L Account Number

Amount in Local Currency

Amount in Document Currency

plz help