How To Fix MF335 - Planning calendar &1 used by material &2 &3. Deletion not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: MF - MPS planning and evaluation

• Message number: 335

• Message text: Planning calendar &1 used by material &2 &3. Deletion not possible

Self-Explanatory Message

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• What is the cause and solution for SAP error message MF335 - Planning calendar &1 used by material &2 &3. Deletion not possible ?

  The SAP error message MF335 indicates that there is an issue with the planning calendar associated with a specific material. This error typically arises when you attempt to delete a planning calendar that is still in use by one or more materials. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  Cause:
  
  Active Planning Calendar: The planning calendar you are trying to delete is currently assigned to a material (or materials) in the system.
  Dependencies: There may be dependencies or configurations that prevent the deletion of the planning calendar while it is still in use.
  Material Master Data: The material master data may still reference the planning calendar, which is why the deletion is not allowed.
  
  Solution:
  To resolve the MF335 error, you can follow these steps:
  
  
  Identify the Material: Check the error message details to identify the specific material(s) associated with the planning calendar. The message will typically provide the material number and possibly the plant or storage location.
  
  
  Review Material Master Data:
  
  Go to the material master record (transaction code MM03).
  Check the relevant views (e.g., MRP view) to see if the planning calendar is still assigned to the material.
  If it is assigned, you will need to remove the assignment before you can delete the planning calendar.
  
  
  
  Change Material Settings:
  
  If the planning calendar is assigned, you can change the material settings to use a different planning calendar or remove the assignment altogether.
  Use transaction code MM02 to modify the material master data.
  
  
  
  Check for Other Dependencies: Ensure that there are no other dependencies or configurations that might be preventing the deletion. This could include:
  
  Open purchase orders or production orders that reference the material.
  Other planning-related settings that might be linked to the planning calendar.
  
  
  
  Delete the Planning Calendar: Once you have removed the assignment from all materials, you can proceed to delete the planning calendar using transaction code SCAL (for planning calendar maintenance).
  
  
  Related Information:
  
  Transaction Codes:
  
  MM03: Display Material Master
  MM02: Change Material Master
  SCAL: Planning Calendar Maintenance
  
  
  Documentation: Refer to SAP Help documentation for more details on planning calendars and material master data management.
  User Roles: Ensure you have the necessary authorizations to make changes to material master data and planning calendars.
  
  By following these steps, you should be able to resolve the MF335 error and successfully delete the planning calendar if it is no longer in use.