How To Fix UC771 - Field lengths of receiver &1 and sender field &2 are different

UC771 - Overview

• Message type: E = Error

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

• Message number: 771

• Message text: Field lengths of receiver &1 and sender field &2 are different

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 UC771 - Field lengths of receiver &1 and sender field &2 are different ?

  The SAP error message UC771 indicates that there is a mismatch in the field lengths between the sender and receiver fields in a data transfer or mapping process. This typically occurs in scenarios involving data transfer between different systems, such as during IDoc processing, BAPIs, or when using data services.
  
  Cause:
  The error arises when:
  
  The length of the data being sent from the sender field does not match the expected length of the receiver field.
  This can happen due to differences in data structure definitions, such as when the sender and receiver systems have different data types or field lengths defined for the same data element.
  It may also occur if there are changes in the data model that have not been synchronized between the sender and receiver systems.
  
  
  Solution:
  To resolve the UC771 error, you can take the following steps:
  
  
  Check Data Definitions:
  
  Verify the data element definitions in both the sender and receiver systems. Ensure that