What is zrep in sap?

Hi, I had made a purchase order and now i want to release in the tcode ME29N but the when i execute this tcode and fill the PO it gives the message that it. SAP Zrep Order Code In Sap Transaction Codes: VA01 — Create Sales Order, MIGO — Goods Movement, VA02 — Change Sales Order, ME21N — Create. SAP Zrep Ac Transaction Codes: MIGO — Goods Movement, MIRO — Enter Incoming Invoice, SE38 — ABAP Editor, SM59 — RFC Destinations. But the report behind ZTEST1 and ZTEST2 is the same ZREP. Are you testing the right SAP transaction codes? Here are 40 most-used SAP T- Codes in SAP ECC. SAPterm - SAP Terminology - This site gives you access to thousand of terminology entries at SAP.