Message type: E = Error
Message class:  IUEEDPPLOTA - Deregulation: Distribution of Aggregated Payments 
Message number: 106
Message text: Original allocation of lot &1 to payment document &2 retained
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The SAP error message IUEEDPPLOTA106 indicates that there is an issue with the allocation of a lot to a payment document. Specifically, the message states that the original allocation of the lot to the payment document has been retained, which typically means that the system is preventing changes to the allocation due to certain conditions not being met.
Cause: Lot Allocation Issues: The lot may already be allocated to another payment document or transaction, preventing it from being reallocated. Document Status: The payment document may be in a status that does not allow changes to the lot allocation (e.g., it may be posted or finalized). Configuration Settings: There may be specific configuration settings in the system that restrict changes to lot allocations under certain conditions. Data Integrity: The system may be enforcing data integrity rules that prevent the modification of lot allocations to ensure consistency in financial reporting or inventory management.
Solution: Check Lot Status: Verify the
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