Duplicate entries when joining EKPO, EKBE, EKKO & LFA1 (SQVI)

Hi,

I am trying to make a query through SQVI that shows Vendor, industry key, requisitioner, pur. grp, doc date, payment & incoterms, and PO value/invoice value per. line

But when executing I get duplicate values for many of the PO items.

I am using inner joins.

Joins are as following:

EKPO-EBELN = EKBE-EBELN & EKPO-EBELP = EKBE-EBELP

EKBE-EBELN = EKKO-EBELN

EKKO-LIFNR = LFA1-LIFNR

Any advice on why this happens?

Best regards