How To Fix UC139 - Max. sender structure length of 4096 bytes was exceeded

UC139 - Overview

• Message type: E = Error

• Message class: UC - FI/CO Data transfer: errors during transfer

• Message number: 139

• Message text: Max. sender structure length of 4096 bytes was exceeded

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message UC139 - Max. sender structure length of 4096 bytes was exceeded ?

  The SAP error message UC139, which states "Max. sender structure length of 4096 bytes was exceeded," typically occurs in the context of SAP's IDoc (Intermediate Document) processing or when dealing with data transfer between systems. This error indicates that the data structure being sent exceeds the maximum allowable size of 4096 bytes.
  
  Cause:
  
  
  Data Structure Size: The primary cause of this error is that the data structure being sent (such as an IDoc or a data packet) exceeds the maximum length of 4096 bytes. This can happen if:
  
  The data being sent contains too many fields or very large fields.
  There are concatenated strings or large binary data being included in the structure.
  
  
  
  
  Configuration Issues: Sometimes, the configuration of the IDoc or the data transfer settings may not be optimized for the data being processed.
  
  
  
  Solution:
  
  
  Review Data Structure: Check the structure of the data being sent. If possible, reduce the size of the data being sent