Hi all,
we noticed a bigger number in output then in input for some SMS recurring deliveries.
After checking, a cross join is performed for customers with more mobile phones and that is the reason for bigger number. (We have several records for the same recipient with different mobile phones which customer poses in recipient table.)
I am trying to find out why is used the cross join here as target mapping is done on mobile number level.
Any idea?
Regards,
Milan
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Hi,
Recipients exist as duplicates in recipient table for each of their phones?
NB not cross join- recipients exist on left side for the numbers.
Thanks,
-Jon
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Hi,
Recipients exist as duplicates in recipient table for each of their phones?
NB not cross join- recipients exist on left side for the numbers.
Thanks,
-Jon
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well primary key is unique but there are customers with the same name/last name with different mobile phones. Generally, these are not duplicates as phone number is different. In output transition cross join is performed: If we have customer with 4 different numbers , we got 16 records (first 4 records with one number, second 4 records with other number, etc).
Anyway, output count should not be greater than input.
Regards,
Milan
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Oh it is a cross-join, numbers seemed too close for that. Wait how are the numbers stored? Mobile is a field in recipient not a relation?
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Hi @Jonathon_wodnicki,
yes it is just a field without relation. I have thougth this is a reconciliation key according to target mapping below:
But as we have more records (just for SMS deliveries) probably is something else reconciliation key.
Anyway, we are fine with number of real sent SMS but in workflow these numbers is ugly.
I am thinking if control group can be reason somehow.
Regards,
Milan
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