Diagnosis
An entry was found in the SID table for which a corresponding entryalso exists in the master data. This context has not been reported tothe BW by the setting of CHCKFL=X.

System Response
The system does not use the entry in the master data, but rather merelyas "posted without master data".

Procedure
This situation can arise if transaction data is loaded but thecorresponding master data table is already available (for example, thetable of units, T006). Missing entries are then posted in the SID tablewith CHCKFL=space. If the corresponding entries are then postedafterwards (in the units example) with basic transactions, then thesituation described may occur temporarily.
You should definitely determine the causes. If you are sure that theentries correspond to one another you can set the CHCKFL flag inexceptional cases.
If you are dealing with a system table (for example, currencies unitsetc.), you can try to remove the error with the program'RRSPECSIDTAB_CORRECT'.