3626821 - Error "No authorization to start the UI for transaction S_ER1_70001260" when activating New Intercompany Billing Solution

When activating the New Intercompany Billing Solution, the user receives error "No authorization to start the UI for transaction S_ER1_70001260".

SAP S/4HANA Cloud Public Edition

Authorization issue is caused by missing Business Catalog.

Business Catalogs SAP_CA_BC_IC_LND_PSP_BLG_PC and SAP_CA_BC_IC_LND_PSP_PRJ_PC should be added to the BPC_EXPERT business role (or to the similar role you are using).

Additionally, in order to have editing rights, please make sure to grant "Write Access" to "Unrestricted" to the BPC_EXPERT business role (or to the similar role you are using).

KBA 3238660 - "CBC- How to find the business catalog to access a SSCUI (Configuration Activity) and avoid authorization errors".

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