Update inserted record on a trigger - sql-server

Question

I'm having troubles while trying to update a record when it is being inserted into a database via external application.
I need the record being inserted from the users in the application takes a value MinimumStock from a table AERO_LOCATIONSTOCKMIN on which are the parent location and the asset type
LOCATIONSTOCKMINID ASSETTYPEID LOCATIONID MINIMUMSTOCK
54000000001 54000000043 43200000357 12.00
54000000002 54000000043 43200000883 6.00
This is the purpose: When a user tries to insert a record on Asset table (via external app), the trigger must to check if the user has selected a location for that Asset. If so, the trigger must retrieve the parent location for the selected location and check if there is stock minimum defined for this AssetType and for this parent location.
If all is fulfilled, the trigger must to set the field UDFText01 to the minimum stock defined in the above table.
Here is what I've tried so far. The trigger is checking well the requirements, but it fails when trying to UPDATE and raising the following error:
The transaction ended in the trigger. The batch has been aborted.
I tried to modify the UPDATE statement in many ways but all of them raises the same error message.
EDIT
Following #Sean Lannge's suggestion I've edited my trigger in order to manage more than one inserts. The trigger is not longer showing the error message but the changes (insert) are not saved into database.
ALTER TRIGGER [spectwosuite].[TRI_ASSET_STOCKMIN] ON [spectwosuite].[ASSET]
FOR INSERT AS
BEGIN
IF (UPPER(USER) != 'SPECTWOREPLENG')
DECLARE #assettypeid numeric(15);
DECLARE #assetid numeric(15);
DECLARE #locationid numeric(15);
DECLARE #parentlocationid numeric(15);
DECLARE #stockmin numeric(9,2);
DECLARE #mistock varchar(100);
DECLARE crs_ROWS CURSOR FOR
SELECT ASSETID, ASSETTYPEID, LOCATIONID
FROM inserted;
OPEN crs_ROWS;
FETCH NEXT FROM crs_ROWS INTO #assetid, #assettypeid, #locationid
WHILE (##FETCH_STATUS = 0)
BEGIN
SELECT #parentlocationID = ParentLocationID FROM Location
LEFT JOIN Asset ON Asset.LocationID = Location.LocationID
WHERE Asset.LocationID = #locationid;
IF NOT EXISTS
(SELECT * FROM Location LEFT JOIN INSERTED AS i ON Location.LocationID = i.LocationID
WHERE Location.LocationID = i.LocationID)
BEGIN
RAISERROR ('Please fill the Location for the Asset.',16,1);
ROLLBACK;
END
ELSE
IF EXISTS (SELECT MinimumStock FROM AERO_LOCATIONSTOCKMIN
WHERE AssetTypeID = #assettypeid AND LocationID = (SELECT ParentLocationID FROM Location WHERE LocationID = #locationID))
BEGIN
SELECT #stockmin = MinimumStock FROM AERO_LOCATIONSTOCKMIN
WHERE AssetTypeID = #assetTypeID AND LocationID =
(SELECT ParentLocationID FROM Location WHERE LocationID = #locationID);
SELECT #mistock= CONVERT(varchar(100),#stockmin);
--RAISERROR (#mistock,16,1);
UPDATE spectwosuite.ASSET
SET UDFText01 = #mistock
FROM
INSERTED I
INNER JOIN spectwosuite.ASSET T ON
T.AssetID = I.AssetID
--UPDATE spectwosuite.ASSET SET UDFText01 = #mistock
-- FROM spectwosuite.ASSET AS A INNER JOIN inserted AS I
-- ON A.AssetID = I.AssetID;
END
ELSE
RAISERROR ('The parent Location for the Asset Type doesn't have minimum stock defined',16,1);
ROLLBACK;
FETCH NEXT FROM crs_ROWS INTO #assetid, #assettypeid, #locationid;
END;
CLOSE crs_ROWS;
DEALLOCATE crs_ROWS;
END;

Answer 1

Based on the extended discussion here see if something like this isn't a bit closer to what you are trying to do.
ALTER TRIGGER [spectwosuite].[TRI_ASSET_STOCKMIN] ON [spectwosuite].[ASSET] FOR INSERT AS
IF (UPPER(USER) != 'SPECTWOREPLENG')
BEGIN
create table #MyInsertedCopy
(
--whatever columns go here that you want to display for error rows
ErrorMessage varchar(50)
)
insert #MyInsertedCopy
select i.* --use your real columns, not *
, 'Please fill the Location for the Asset' as ErrorMessage
from inserted i
left join Location l on l.LocationID = i.LocationID
where l.LocationID IS NULL
insert #MyInsertedCopy
select i.* --use your real columns, not *
, 'The parent location for that Asset doesn''t have minimum stock defined' as ErrorMessage
from inserted i
left join AERO_LOCATIONSTOCKMIN a on a.AssetTypeID = i.AssetID
left join Location l on l.ParentLocationID = i.LocationID
where a.AssetTypeID is NULL
update a
set UDFText01 = MinimumStock
FROM INSERTED I
INNER JOIN spectwosuite.ASSET T ON T.AssetID = I.AssetID
INNER JOIN AERO_LOCATIONSTOCKMIN a on a.AssetTypeID = i.AssetID
INNER JOIN Location l on l.ParentLocationID = i.LocationID
IF EXISTS(select * from #MyInsertedCopy)
--do something to report that there are rows that failed
select * from #MyInsertedCopy
END