Symptom
You want to add Custom Fields in APP Reassign Costs and Fields, for example, you want to add Custom Fields to the Items Line.
Environment
SAP S/4HANA Cloud Public Edition
Cause
Currently, APP Reassign Costs and Revenues does not support Extensibility and Custom Fields during posting.
Resolution
Please raise feature request according to KBA 2963059 - How to Submit Feature Requests for SAP S/4HANA Cloud Public Edition Product.
Keywords
Custom Fields, Custom Fields and Logic, Reassign Costs and Revenues. , KBA , CO-FIO-CCA-TRA-2CL , Transactions (Public Cloud) , Problem
Product
SAP S/4HANA Cloud Public Edition all versions ; SAP S/4HANA Cloud all versions