How To Fix >6521 - Incorrect buffer type &1; &2 is required

>6521 - Overview

• Message type: E = Error

• Message class: >6 - Purchasing Document

• Message number: 521

• Message text: Incorrect buffer type &1; &2 is required

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 >6521 - Incorrect buffer type &1; &2 is required ?

  The SAP error message 6521 indicates that there is an issue with the buffer type being used in a particular operation. The message typically states: "Incorrect buffer type &1; &2 is required," where &1 represents the buffer type that was provided, and &2 indicates the expected buffer type.
  
  Cause:
  This error usually occurs in the context of data processing where the system expects a specific type of buffer (e.g., a certain structure or format) but receives a different one. Common scenarios include:
  
  Data Type Mismatch: The program or function module is expecting a certain data structure or type but receives a different one.
  Incorrect Function Module Call: A function module is called with parameters that do not match the expected types.
  
  Configuration Issues: There may be configuration settings that are not aligned with the expected data types.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Function Module/Method: Review the documentation for the function