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Procure-to-Pay

Learners can explain how a procurement need becomes a posted supplier liability and payment, including the material, logistics, and Universal Journal impact.

Beginner (Key-user)

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Process overview and business context

Procure-to-Pay connects operational buying, warehouse receipt, invoice verification, and finance clearing. In S/4HANA, learners need to see the whole chain because a weak purchase order, late goods receipt, or blocked invoice quickly becomes a finance and supplier-service issue.

End-to-end flow

1Purchase RequisitionME51N
Fiori app: Create Purchase Requisition
ACDOCA impact: No direct ACDOCA posting; creates demand and approval context.
2Purchase OrderME21N
Fiori app: Manage Purchase Orders
ACDOCA impact: No accounting entry for a standard PO, but commitment and valuation expectations are established.
3Goods ReceiptMIGO
Fiori app: Post Goods Movement
ACDOCA impact: Posts inventory or expense and GR/IR clearing where valuation is relevant.
4Invoice VerificationMIRO
Fiori app: Create Supplier Invoice
ACDOCA impact: Posts supplier liability, tax, price differences, and clears GR/IR where matched.
5PaymentF110
Fiori app: Manage Automatic Payments
ACDOCA impact: Clears supplier open item and posts bank/cash movement.

Key tables

Table	Explanation
EKKO	Purchase order header: supplier, purchasing organization, document type, currency, and release state.
EKPO	Purchase order items: material, quantity, price, plant, account assignment, and delivery tolerance.
MARA	General material master data used throughout procurement and inventory processing.
MSEG / MATDOC	Goods movement item data; S/4HANA uses MATDOC as the material document line-item foundation.
RBKP / RSEG	Supplier invoice header and item data used by invoice verification.
ACDOCA	Universal Journal line items for valuation, invoice, and payment-related financial postings.

Step-by-step walkthrough

Create the purchase requisition

Capture material, plant, quantity, delivery date, account assignment, and requester.

Watch out for: If account assignment is wrong, invoice verification may block later even though purchasing looked correct.

Convert or create the purchase order

Confirm supplier, price, tax code, purchasing organization, delivery tolerances, and approval status.

Watch out for: Avoid teaching ME21N as typing practice; explain why each field controls downstream receipt and invoice behavior.

Post goods receipt

Receive against the PO and check stock, valuation, and GR/IR postings.

Watch out for: A late or missing goods receipt is one of the most common causes of blocked invoices.

Verify supplier invoice

Run the three-way match between PO, receipt, and invoice, then analyze any block.

Watch out for: Price, quantity, and tax differences should be classified before they are released.

Pay and clear supplier item

Execute payment proposal, review exceptions, post payment, and confirm clearing.

Watch out for: Payment terms and baseline date are master-data topics, not only finance topics.

Common errors and troubleshooting

Invoice blocked for quantity variance

Likely cause: Supplier invoiced more than received or receipt was not posted.

Fix path: Check MIGO/MATDOC receipt and tolerance settings before releasing the block.

Wrong account assignment

Likely cause: Cost center, asset, WBS, or GL account was missing or incorrect on PR/PO.

Fix path: Correct the purchasing document if possible; otherwise document the finance correction path.

GR/IR balance remains open

Likely cause: Receipt and invoice quantities or values do not reconcile.

Fix path: Analyze PO history, invoice documents, and clearing logic before month-end close.

ECC to S/4HANA differences

S/4HANA keeps the familiar purchasing documents, but analytics, inventory valuation, and finance reporting are simplified through HANA-optimized apps and the Universal Journal. Material Ledger is mandatory and finance impact is visible faster through ACDOCA-based reporting.

Glossary

Purchase Requisition: Internal request that documents a need before a purchase order is created.
Purchase Order: Legally relevant purchasing document sent to a supplier.
Goods Receipt: Posting that confirms goods or services were received and updates inventory or expense.
Invoice Verification: Step that compares supplier invoice data with the purchase order and receipt.
ACDOCA: Universal Journal table where finance line items are stored in SAP S/4HANA.