How To Fix /SCMUI/UIAPOMD659 - 'Sizing decision' field can only contain T or SPACE

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMUI/UIAPOMD -

• Message number: 659

• Message text: 'Sizing decision' field can only contain T or SPACE

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMUI/UIAPOMD659 - 'Sizing decision' field can only contain T or SPACE ?

  The SAP error message /SCMUI/UIAPOMD659 'Sizing decision' field can only contain T or SPACE typically occurs in the context of SAP Advanced Planning and Optimization (APO) or Supply Chain Management (SCM) when there is an issue with the input data for a specific field, in this case, the 'Sizing decision' field.
  
  Cause:
  The error indicates that the 'Sizing decision' field is expected to contain only specific values, namely 'T' (which usually stands for "Tactical") or a blank space (SPACE). If the field contains any other value, the system will throw this error. This can happen due to:
  
  Incorrect Data Entry: Users may have entered an invalid value in the 'Sizing decision' field.
  Data Migration Issues: If data was migrated from another system, it may have included invalid values.
  Custom Code or Enhancements: If there are custom developments or enhancements that manipulate this field, they may inadvertently set it to an invalid value.
  
  
  Solution:
  To resolve this error,