Message type: E = Error
Message class:  RSM1 - Messages for AWB, Scheduler and Monitor (new) 
Message number: 148
Message text: Request &1(&2) to be updated in DataStore &3 is smaller than request (&4)
Request &V1&(&V2&) cannot be posted in DataStore object &V3&. This is
only possible when the correct sequence is adhered to.
Request &V4& has a smaller
<DS:GLOS.364F05CAFBD02AB1E10000009B38F982>master data ID</> (SID) than
request &V1&(&V2&), which already exists in the DataStore object.
Therefore, the DataStore object has been structured incorrectly.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
If request &V1&(&V2&) is already active, delete this request &V1&(&V2&)
from the DataStore object and post request &V4& first and then request
&V1&(&V2&) again.
If request &V1&(&V2&) is not yet active, load request &V4&. The
activation process then sorts all requests that are not yet active into
the correct sequence when you activate them.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message RSM1148 indicates that there is a discrepancy between the data request that is being processed and the data that is already present in the DataStore Object (DSO). Specifically, the error message states that the request you are trying to update is smaller than the existing request in the DataStore. This typically occurs during the data loading process in SAP BW (Business Warehouse).
Cause: Data Request Size Mismatch: The request you are trying to load into the DataStore is smaller than an existing request. This can happen if: The data being loaded is incomplete or has been filtered incorrectly. There is a mismatch in the data structure or key fields between the incoming data and the existing data in the DSO. The request you are trying to load has fewer records than the request that is already present. Data Consistency Issues: If there are inconsistencies in the data or if the data has
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