Message type: E = Error
Message class:  69 - Central Functions of Financial Asset Management 
Message number: 055
Message text: Condition type for flow category & is not unique in group &
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message 69055, which states "Condition type for flow category & is not unique in group &," typically occurs in the context of pricing and condition records in SAP. This error indicates that there is a conflict in the condition types defined for a specific flow category within a pricing procedure or condition group.
Cause: Non-Unique Condition Types: The error arises when multiple condition types are assigned to the same flow category in a pricing procedure or condition group. Each flow category should have a unique condition type associated with it.
Configuration Issues: This can happen due to incorrect configuration in the pricing procedure or condition records, where the same condition type is mistakenly assigned to a flow category more than once. Custom Development: If there are custom developments or modifications in the pricing logic, they might inadvertently lead to this error.
Solution: Check Pricing Procedure: Go to the transaction code V/08 (Maintain Pricing Procedures). Identify
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69056 Condition type for flow category & not available in group &
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69057 & cannot be calculated because no flow records exist
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