Message type: E = Error
Message class:  IUEEDPPLOTA - Deregulation: Distribution of Aggregated Payments 
Message number: 145
Message text: Specify one default algorithm only
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The SAP error message IUEEDPPLOTA145 with the description "Specify one default algorithm only" typically occurs in the context of SAP's Advanced Planning and Optimization (APO) or similar modules where algorithms are defined for planning processes.
Cause: This error arises when multiple default algorithms are specified for a particular planning area or process, which is not allowed. The system expects only one default algorithm to be designated for a specific function, and having more than one leads to ambiguity in the planning process.
Solution: To resolve this error, you need to ensure that only one default algorithm is set for the relevant planning area or process. Here are the steps to do this: Access the Algorithm Configuration: Go to the relevant transaction in SAP (e.g., /SAPAPO/SDP1 for SNP or /SAPAPO/MC90 for DP). Check the Algorithms: Navigate to the section where algorithms are defined for the planning area or process in question. Review the list of algorithms currently set up. Identify Default
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