Hi @Tahani Alabri ,

you are now looking for id's in your database that can be found in your string, so id 1 can be found if 13 is a value in your string.  

The trick is, to make sure each value in your string gets preceded and followed by a separation character (for example your ',') and then not look for id's themselves to be found in the string, but an id preceded and followed by that same separation character.

so :

in your ArtistTagsOnChanged, start the string of with a ',' and also add a final ',' afterwards. 

in your aggregate, change your condition

Dorine

Hello Tahani,

Kindly find attached oml which I updated way that you assign values to ArtistId variables and added "," to the beginning and the end of ArtistId value also I did same into filter of your aggregate to make sure in case Id you selected is consists of 2 digits it will match only with Id of table with same value not with one digit Id 

As you explained Id 26 return data for Id 2 and 6 because Index("26","2") will return 0 and Index("26",6) will return 1. 

Please note that Index() function we are using for text values not integer values.