What replaces BSEG in S/4HANA?

BSEG is replaced by the Universal Journal table ACDOCA in S/4HANA. BSEG still exists as a compatibility view, but ACDOCA is the single source of truth for all financial postings, combining FI and CO line items.

What happens to VBUP and VBUK in S/4HANA?

VBUP (item status) fields are merged into VBAP and LIPS. VBUK (header status) fields are merged into VBAK and LIKP. Both tables still exist as compatibility views but are no longer physically stored.

What replaces LFA1 and KNA1 in S/4HANA?

Both LFA1 (Vendor Master) and KNA1 (Customer Master) are replaced by the Business Partner table BUT000 in S/4HANA. The BP transaction replaces XK01/XD01. LFA1 and KNA1 exist as compatibility views.

S/4HANA Migration Guide

Which SAP ECC tables change in S/4HANA? This reference maps 52 commonly used tables to their S/4HANA status — replaced, merged, renamed, or unchanged.

52 All 25 Unchanged 23 Replaced 3 Merged 1 Deprecated

All BP 1 CO 4 FI 14 HR 2 MM 13 PM 3 PP 4 SD 11

Showing 5 table(s) with status Replaced in module MM — Clear filters

Migration Mappings (5)

ECC Table	Description	Status	S/4 Successor	Module	Notes
LFA1	Supplier Master (General Section)	Replaced	BUT000	MM	Vendor master replaced by Business Partner (BUT000). LFA1 exists as compatibility view. Use BP transaction instead of XK01.
LFB1	Vendor Master (Company Code)	Replaced	BUT000	MM	Vendor company code data migrated to Business Partner. LFB1 exists as compatibility view.
LFBK	Vendor Master (Bank Details)	Replaced	BUT0BK	MM	Vendor bank details replaced by Business Partner bank data (BUT0BK).
MKPF	Material Document: Header	Replaced	MATDOC	MM	Header fields merged into MATDOC. MKPF exists as compatibility view.
MSEG	Document Segment: Material	Replaced	MATDOC	MM	MSEG and MKPF are replaced by MATDOC in S/4HANA. MATDOC is a single table combining header and item data for material documents.

About S/4HANA Table Migration

When migrating from SAP ECC to S/4HANA, many database tables undergo significant changes. The most impactful change is the introduction of the Universal Journal (ACDOCA), which replaces dozens of FI and CO tables (BSEG, GLT0, FAGLFLEXA, COEP, and more). In Sales & Distribution, status tables like VBUP and VBUK are merged into their parent tables (VBAP/VBAK). The Business Partner (BUT000) replaces separate customer (KNA1) and vendor (LFA1) master records.

This migration guide helps SAP developers and consultants identify which tables change and find their S/4HANA successors. Each table links to its detailed CDSee page with fields, CDS views, and lineage information.