Message type: E = Error
Message class:  IUEEDPPLOTA - Deregulation: Distribution of Aggregated Payments 
Message number: 001
Message text: Distribution run already already exists for run ID &1 / date &2
You attempted to restart a run that has already ended.
Processing is terminated.
If you still want distribution to take place, start a new run with the
same selection criteria.
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 IUEEDPPLOTA001 indicates that a distribution run already exists for the specified run ID and date. This typically occurs in the context of the SAP system's distribution processes, such as those related to logistics or financial distributions.
Cause: The error is triggered when you attempt to create a new distribution run with a run ID and date that already has an existing distribution run. This can happen due to: Duplicate Execution: The distribution process was already executed for the same parameters. Incorrect Data Entry: The user may have mistakenly entered the same run ID and date. System Configuration: There may be a configuration issue that allows for duplicate entries.
Solution: To resolve this error, you can take the following steps: Check Existing Runs: Use transaction codes like IUEE or relevant reports to check for existing distribution runs with the same run ID and date. Review the details of the existing run to determine if it was
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