Message type: E = Error
Message class:  PSSC_BILLING - PS Social Services - Billing 
Message number: 120
Message text: Item process category &1 not found
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The SAP error message PSSC_BILLING120 with the description "Item process category &1 not found" typically occurs in the context of billing processes within SAP, particularly in the SAP Convergent Charging (SAP CC) or SAP Convergent Invoicing (SAP CI) modules. This error indicates that the system is unable to find a specific item process category that is required for processing a billing item.
Cause: Missing Configuration: The item process category specified in the error message is not defined in the system. This could be due to a configuration oversight or a missing entry in the relevant customizing settings. Incorrect Item Process Category: The item process category being referenced may be incorrect or misspelled in the billing document or configuration. Transport Issues: If the configuration was recently transported from another system (e.g., development to production), the transport may not have included the necessary item process category settings. Versioning Issues: If there are multiple versions of the configuration,
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