How To Fix CNVMBT235 - Sign &1 unknown. Only I and E as values allowed.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVMBT - Messages for MBT/API/PCL

• Message number: 235

• Message text: Sign &1 unknown. Only I and E as values allowed.

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 CNVMBT235 - Sign &1 unknown. Only I and E as values allowed. ?

  The SAP error message CNVMBT235 indicates that there is an issue with the value assigned to a specific field, where the system expects either 'I' (Insert) or 'E' (Edit) as valid inputs. The error message suggests that an unknown or invalid value has been provided, which is not recognized by the system.
  Cause:
  
  Invalid Input: The most common cause of this error is that the field in question has been assigned a value other than 'I' or 'E'. This could be due to a typo, incorrect data mapping, or an error in the data import process.
  Data Migration Issues: If this error occurs during a data migration process, it may indicate that the source data contains unexpected values that do not conform to the expected format.
  Configuration Issues: There may be a configuration issue in the system that is causing it to expect a different set of values.
  
  Solution:
  
  Check Input Values: Review the input data for the field that is causing the error. Ensure that only 'I' or 'E' are being used as values. Correct any invalid entries.
  Data Mapping: If this error occurs during a data migration, check the mapping of the source data to the target fields in SAP. Ensure that the values are being correctly transformed to 'I' or 'E'.
  Debugging: If you have access to debugging tools, you can trace the execution to see where the invalid value is being set. This may help identify the root cause.
  Consult Documentation: Review the relevant SAP documentation or notes related to the specific transaction or process you are working with. There may be additional context or known issues that can help resolve the error.
  Contact Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support or your internal SAP team for assistance.
  
  Related Information:
  
  Transaction Codes: Depending on where this error occurs, you may want to check the specific transaction codes involved in the process.
  SAP Notes: Search for SAP Notes related to the CNVMBT235 error message for any patches or updates that may address the issue.
  Data Validation: Implement data validation checks in your data processing workflows to catch such errors before they cause issues in the system.
  
  By following these steps, you should be able to identify and resolve the issue related to the CNVMBT235 error message in SAP.