3797828 - Error: Enter material number for reservation request because MATERIAL_LONG is missing in inbound proxy ARBCIG_STK_RESERVATION ARBCI1 SP26

Symptom

Item reservation creation request sent from SAP Ariba Buying and Invoicing fails in SAP S/4HANA SRT_MONI transaction code with error M7 014 Enter material number.
Inbound proxy for item reservations no longer contains MATERIAL_LONG, so the material number is not transferred.
Program still references MATERIAL_LONG, causing the reservation to fail in SAP S/4HANA system with ARBCI1 add-on SP26.

Environment

Product: SAP Ariba Buying and Invoicing
SAP Integration Suite, managed gateway - PR Reservation
SAP S/4HANA with ARBCI1 add-on version 26 (SP26)

Product

SAP Ariba Procurement, cloud edition all versions ; SAP Integration Suite, managed gateway all versions ; SAP Integration Suite, managed gateway for spend management and SAP Business Network all versions ; SAP Integration Suite, managed gateway for spend mgmt and SAP Business Network for SAP S/4HANA all versions

Keywords

bapi_reservation_create1, cig, ci, material number conversion, proxy payload mapping, reservation interface error, inbound service mapping, s4hana reservation interface, sp26, sp24, sp25, sp24, sp23, sp22, add-on compatibility issue, long material field, structure update, addon, upgrade, after upgrade , KBA , BNS-ARI-CI-BUY-RER , Managed Gateway for Procurement PR Reservation , BNS-ARI-CI-BUY-PO , Managed Gateway for Procurement - Purchase Order , Problem

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