How To Fix DB657 - Only 'I' or 'E' allowed

DB657 - Overview

• Message type: E = Error

• Message class: DB - Messages for logical databases and background processing

• Message number: 657

• Message text: Only 'I' or 'E' allowed

What causes this issue?

You entered an invalid value in the <LS>SIGN</> field for options (last
field on line). The permitted values are <LB>I</> (Inclusive) or
<LB>E</> (Exclusive).

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Please enter one of these values.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DB657 - Only 'I' or 'E' allowed ?

  The SAP error message DB657: Only 'I' or 'E' allowed typically occurs in the context of database operations, particularly when dealing with database table entries or updates. This error indicates that an invalid value has been provided for a field that expects a specific input, usually related to the status or type of operation being performed.
  
  Cause:
  The error is generally caused by:
  
  Invalid Input: The system expects a specific character ('I' for Insert or 'E' for Edit) but received a different value.
  Program Logic Error: There may be a bug in the ABAP code or a misconfiguration in the program logic that leads to an incorrect value being passed to the database operation.
  Data Integrity Issues: If the data being processed does not conform to the expected format or constraints, it can trigger this error.
  
  
  Solution:
  To resolve the DB657 error, you can take the following steps:
  
  
  Check Input Values: Review the input values being passed to