Situation and Purpurse:Need to add customer fields as query conditon for sap tcode FAGLL03.
Solution:
1.Key in sap tcode FAGLL03.
2.Choose[自由选择],double click[总账科目行项目]file directory. In [Field data], find out table name.
3.Double click table name,Such as [BSIS_FS].
4.Tcode se11, goto sap data dictionnary. Choose[Append structure] that have new choose fields, such as XREF3.
5.Save and aveive all the objects, then goto sap tocde FAGLL03 again, you will see the addded fields.

And if you want to add enhancement to add fields to SAP tcode fbl1n.
You can ref below link:
https://blogs.sap.com/2019/01/04/5-easy-steps-to-add-new-line-item-fields-to-fbl1n/
This post is come from www.hot583.com, you can share/use it with the post original link for free.
But pay attention of any risk yourself.
微信原文《The End》