Match Records - Import manager

Question

Dear Experts,
When there is a table with NO DATA init, the match records options work diffrently.
This could be because matching record allways tries to compare source with destination values.
As here the destination table is blank i guess this could be the reason i am not able to judge the outcome.
Lets say i have 3 fields.
name        dept   cost     
adapter    IT        20
adapter    IT        20
when i try to import the above data..
matching fileds : name
active     match type      default import action
2 of 2        NONE                 CREATE
Now if i chk the DM i can see only 1 record.
Is this behaviour correct!!! please educate me if i am missing something.
I would like to know how matching records work on a empty table.
Kind Regards
Eva

Answer 1

Hi Eva,
if 2 fileds selected INDIVIDIALLY.
1st field values are duplicated and second field does not have duplicate.
all the records where 1st field duplicates are present ARE NOT IMPORTED.
Yes, your understanding is partial correct, i mean new record will not imported(gets created into MDM) but it can be imported with updated fields with conditions (Partial or conflict) only
Now, when i need to push some data to a table which has data already.
-> it first chks the Matching fields comparision 'within' source fields data first.
-> then it compares the result data and Destination data
See as suggested above, if you select matching field as single field or Multiple fields selection with combined option then it worka as single match for these records if it finds already existing match for the combination of these fields only in that case you will able to update else result in newly created records.
If you go mutliple fields selection with Individual Option, I mean you will able to create new record only if all of these records fields has distinct values e.g. Suppose
Existing record in MDM
Name dept rating
adapter elec 30
will create new record only if your source file has below record.
Name dept rating
adapter1 elec1 40
else if you have any of the record for which any of the fields has same value it will only update the records based on condition as below:
Exact. All the individual value matches are Equal. e.g. source file has values adapter elec 30
Partial. At least one value match is Equal and at least one Undefined;   e.g source file has values adapter 20
here one value is equal adapter, one value is not defined value for dept is null in your source file
Partial. At least one value match is Equal and no value matches are Not Equal e.g source values as adapter elec1 40
Conflict. At least one value match is Equal and at least one value match is Not Equal. e.g. Src value as adapter elec 40
@Sudhanshu, M i right or not. Your understanding is correct. Imported records would be only one of these 1 a d, 1 a z , 2 a b
For more understanding Please refer page 347-348/432 of import Reference guide
http://help.sap.com/saphelp_nwmdm71/helpdata/en/4b/72b8e7a42301bae10000000a42189b/MDMImportManager71.pdf
Figure 220. Multiple matching fields (SKU and UPC) and Figure 221. Multiple matching fields (SKU and Mfr. & PartNo.)
Hope it clarifies both of you.
Regards,
Mandeep Saini