How To Fix I10026 - Activity type &1 does not exist or not valid from &2 to &3

SAP Error Message - Details

• Message type: E = Error

• Message class: I10 - Work Management IDocs Messages

• Message number: 026

• Message text: Activity type &1 does not exist or not valid from &2 to &3

What causes this issue?

Activity type specified does not exist or is not valid between earliest
scheduled start date and latest scheduled finish date for the related
operation.

How to fix this error?

Use valid activity type and resubmit IDoc.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message I10026 - Activity type &1 does not exist or not valid from &2 to &3 ?

  The SAP error message I10026 indicates that the specified activity type does not exist or is not valid for the given date range. This error typically occurs in the context of cost planning, activity allocation, or when working with internal orders or cost centers in SAP.
  Cause:
  
  Non-Existent Activity Type: The activity type specified in the transaction does not exist in the system.
  Invalid Date Range: The activity type may exist, but it is not valid for the specified date range. This could be due to the activity type being inactive or not defined for the given period.
  Configuration Issues: There may be configuration issues in the controlling area or the activity type settings that prevent it from being recognized.
  Master Data Issues: The master data for the activity type may not be properly maintained or may have been deleted.
  
  Solution:
  
  
  Check Activity Type: Verify that the activity type specified in the transaction exists in the system. You can do this by navigating to the relevant configuration or master data area in SAP.
  
  Use transaction code KP26 (Change Activity Type Planning) or KP06 (Change Plan Data) to check if the activity type is available.
  
  
  
  Validate Date Range: Ensure that the date range specified in the transaction is valid. Check if the activity type is active for the given period.
  
  You can check the validity of the activity type in the configuration settings under Controlling > Cost Center Accounting > Master Data > Activity Types.
  
  
  
  Review Configuration: If the activity type exists but is not valid for the specified date range, review the configuration settings for the controlling area and the activity type.
  
  Ensure that the activity type is assigned to the correct cost center or internal order and that it is active.
  
  
  
  Check Master Data: Ensure that the master data for the activity type is correctly maintained. If necessary, recreate or adjust the activity type in the system.
  
  
  Consult Documentation: If you are unsure about the configuration or the steps to resolve the issue, refer to SAP documentation or consult with your SAP support team for further assistance.
  
  
  Related Information:
  
  Transaction Codes: KP26, KP06, KSU5 (for activity type planning), and others related to controlling and cost accounting.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to access and modify activity types and related data.
  
  By following these steps, you should be able to identify the cause of the error and implement the appropriate solution.