How To Fix /SAPAPO/CTM1381 - Validity start for source of supply &1 is smaller than standard value

/SAPAPO/CTM1381 - Overview

• Message type: E = Error

• Message class: /SAPAPO/CTM1 -

• Message number: 381

• Message text: Validity start for source of supply &1 is smaller than standard value

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 /SAPAPO/CTM1381 - Validity start for source of supply &1 is smaller than standard value ?

  The SAP error message /SAPAPO/CTM1381 indicates that there is an issue with the validity start date for a source of supply in the Advanced Planning and Optimization (APO) module, specifically in the context of the Capable-to-Match (CTM) functionality. The error message states that the validity start date for the source of supply is smaller than the standard value, which typically means that the date is not aligned with the expected planning horizon or configuration settings.
  
  Cause:
  
  Invalid Validity Dates: The validity start date for the source of supply (like a vendor or production location) is set to a date that is earlier than what is allowed by the system settings or planning parameters.
  
  Configuration Issues: The planning parameters or settings in the APO system may not be correctly configured, leading to discrepancies in the expected validity dates.
  Master Data Issues: The master data for the source of supply may not be correctly maintained, leading