Message type: E = Error
Message class:  CNV20551 - message for package 20551 (company code delete) 
Message number: 381
Message text: MAFID=&1, KLART=&2: Struct. suggestion not possible for OBJNUM / OBJNUM_L
For MAFID=&V1&, table TCLA will normally contain an entry for KLART=&V2&
, which establishes a relation to TCLA-OBTAB and table TCLO. However
this entry is missing.
No structure suggestion for OBJNUM or OBJNUM_L can be made. Warning.
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 CNV20551381 indicates that there is an issue related to the structural suggestion for a specific object number (OBJNUM) and object number for the logical (OBJNUM_L) in the context of a data migration or conversion process. This error typically arises during the execution of a migration project, particularly when using SAP's data migration tools or during the conversion of legacy data into the SAP system.
Cause: Data Inconsistency: The object number (OBJNUM) or logical object number (OBJNUM_L) may not exist in the target system or may not be correctly mapped from the source system. Missing Configuration: There may be missing configuration settings or mappings that are required for the structural suggestion to be generated. Invalid Data: The data being processed may not meet the required criteria or format expected by the SAP system. Technical Issues: There could be underlying technical issues, such as database constraints or issues with the migration tool itself.
Solution: Check
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV20551380 Different lengths; &1 is not equal to &2 (in CNV_20551_TSTRUC)
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20551379 Different domains; &1 is not equal to &2 (in CNV_20551_TSTRUC)
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20551382 INTR_FLD=&1, PARAM=&2: &3 or &4 not defined; no structure suggestion
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV20551383 Table field & is missing in DDIC (exists neither in DD03L nor in DD016S)
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.