How To Fix K-770 - External key assignment is not possible for financial transaction cat.&1

K-770 - Overview

• Message type: E = Error

• Message class: K- -

• Message number: 770

• Message text: External key assignment is not possible for financial transaction cat.&1

Self-Explanatory Message

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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 K-770 - External key assignment is not possible for financial transaction cat.&1 ?

  The SAP error message K-770, which states "External key assignment is not possible for financial transaction cat. &1," typically occurs in the context of financial transactions in SAP Controlling (CO) when there is an attempt to assign an external key to a financial transaction category that does not support it.
  
  Cause:
  
  Transaction Category Limitation: The financial transaction category you are trying to use does not allow for external key assignments. This is often the case with certain predefined transaction categories in SAP.
  
  Configuration Issues: The configuration settings for the financial transaction categories may not be set up to allow external key assignments.
  Data Entry Error: There may be an error in the data entry process, such as using the wrong transaction category or incorrect external key format.
  
  
  Solution:
  
  Check Transaction Category: Verify the transaction category you are using. Ensure that it is one that supports external key assignments. You can check the documentation or configuration settings