How To Fix /ISDFPS/MISC646 - Enter a valid start date for material &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/MISC -

• Message number: 646

• Message text: Enter a valid start date for material &1

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/MISC646 - Enter a valid start date for material &1 ?

  The SAP error message /ISDFPS/MISC646 Enter a valid start date for material &1 typically occurs in the context of SAP's Integrated Business Planning (IBP) or similar modules where material planning is involved. This error indicates that the system requires a valid start date for a specific material, but the date provided is either missing, invalid, or not within the acceptable range.
  Cause:
  
  Missing Start Date: The start date for the material has not been entered.
  Invalid Date Format: The date entered may not be in the correct format or may not be recognized by the system.
  Date Out of Range: The date provided may fall outside the permissible range defined in the system settings (e.g., past dates or dates beyond the planning horizon).
  Material Master Data Issues: The material master data may not be properly maintained, leading to issues with date validation.
  
  Solution:
  
  Check Input: Ensure that a valid start date is entered for the material. The date should be in the correct format (e.g., YYYY-MM-DD).
  Validate Date Range: Confirm that the date falls within the acceptable range defined in the system. If necessary, adjust the date to fit within the planning horizon.
  Review Material Master Data: Check the material master data for any inconsistencies or missing information that could affect date validation.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on date entry for the relevant module.
  System Configuration: If the issue persists, it may be necessary to consult with your SAP administrator or support team to review system configurations related to date handling.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may need to use specific transaction codes to access material master data or planning functions (e.g., MM01, MM02 for material master).
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on this error message.
  User Permissions: Ensure that you have the necessary permissions to make changes to material data, as restrictions may lead to errors when attempting to enter or modify dates.
  
  If the problem continues after following these steps, it may be beneficial to engage with SAP support for further assistance.