Message type: E = Error
Message class:  CNV_00001 - Message class for CWB settings maintenance programs 
Message number: 244
Message text: Priority flag is not allowed (field &1 of table &2)
Field &V1& of table &V2& has a priority flag set. This flag is no longer
in use. In order to use priority duplicate handling the value 'P' of
SUMUP for table &V2& has to be set and correct priority routine has to
be used.
The status is set to error.
Change the duplicate handling type for table &V2&.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_00001244, which states "Priority flag is not allowed (field &1 of table &2)," typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of a conversion program.
Cause: This error usually arises due to the following reasons: Field Restrictions: The field in question (indicated by &1) in the specified table (indicated by &2) does not allow the use of a priority flag. This could be due to the field's data type or the specific configuration of the table. Data Mapping Issues: During the data migration process, there may be an attempt to set a priority flag on a field that is not designed to accept it. Configuration Errors: The configuration settings for the migration or conversion process may not align with the requirements of the target system or table structure.
Solution: To resolve this error, you can take the following steps: Check Field Definition: Review
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_00001241 The description cannot be empty.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_00001240 Table &1 cannot be used as dependent for table &2.
What causes this issue?  Table &V1& cannot be used as dependent for table &V2&. For this functionality to work the table &V1& ...
CNV_00001245 Aggregation type specified for non-aggregated field &1 of table &2
What causes this issue?  Field &V1& of table &V2& has the aggregation type set although the conversion scenario for table &V2&...
CNV_00001246 More than one priority routine defined for table &1
What causes this issue?  For table &V1& there are more priority routines defined. During the conversion runtime in case of duplicate entries i...
Click on this link to search all SAP messages.