How To Fix CT781 - You cannot combine cost activities with external and/or int. processing

CT781 - Overview

• Message type: E = Error

• Message class: CT - CIM messages: ATAB table accesses

• Message number: 781

• Message text: You cannot combine cost activities with external and/or int. processing

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CT781 - You cannot combine cost activities with external and/or int. processing ?

  The SAP error message CT781 indicates that there is an issue with the configuration of cost activities in a particular context, typically when trying to combine cost activities with external processing or internal processing in a way that is not allowed by the system.
  
  Cause:
  The error occurs when you attempt to assign cost activities to a process that is set up for external or internal processing, which is not permitted. This can happen in various scenarios, such as:
  
  Incorrect Configuration: The configuration of the cost activity or the related process may not allow for the combination of cost activities with external or internal processing.
  Master Data Issues: The master data for the cost activity or the related objects may not be set up correctly, leading to conflicts.
  Process Type Restrictions: Certain process types may have restrictions on how cost activities can be combined with other processing types.
  
  
  Solution:
  To resolve the CT781 error, you can take