How To Fix FKKINV728 - Start date for billing cycle &1 cannot be determined.

FKKINV728 - Overview

• Message type: E = Error

• Message class: FKKINV - Invoicing in Contract Accounts Receivable and Payable

• Message number: 728

• Message text: Start date for billing cycle &1 cannot be determined.

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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FKKINV728 - Details

• The SAP error message FKKINV728 indicates that the system is unable to determine the start date for a billing cycle for a specific contract or billing document. This can occur in the context of contract accounts receivable and payable (FI-CA) when trying to generate invoices or billing documents.
  Causes:
  
  Missing Configuration: The billing cycle may not be properly configured in the system. This could include missing entries in the billing plan or incorrect settings in the contract account.
  Incomplete Master Data: The master data for the contract account or the billing document may be incomplete or incorrect, leading to the inability to determine the billing cycle start date.
  Date Ranges: The date ranges defined for the billing cycle may not cover the period for which the billing is being processed.
  Billing Plan Issues: If the billing plan is not set up correctly or is missing, the system will not be able to determine the start