Message type: E = Error
Message class:  CNV_CMIS_M - Message class for CMIS Migration 
Message number: 229
Message text: Error while reading F4 values
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.
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.
The SAP error message CNV_CMIS_M229 typically occurs during data migration or conversion processes, particularly when using the SAP Conversion Tools or during the execution of a program that involves reading values for a field (F4 values) from a database or a table. This error indicates that there was an issue retrieving the possible values for a field, which can be due to various reasons. Causes of CNV_CMIS_M229 Missing or Incomplete Data: The data source from which the F4 values are being read may be incomplete or missing. This could be due to a failed data load or an incorrect configuration. Authorization Issues: The user executing the transaction may not have the necessary authorizations to access the data or the relevant tables. Configuration Errors: There may be issues with the configuration of the data migration tools or the specific settings for the field in question. Database Issues: There could be underlying database issues, such as connectivity
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_CMIS_M228 Mapping entries updated are &1 &2 and &3
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_CMIS_M227 Entries from Excel could not be updated to the database table
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_CMIS_M230 Error while reading fields
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_CMIS_M231 A domain marked for conversion may not have an initial length
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.