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salesforce sfdxsalesforce sfdx 

How to check is null or blank for a Variable which allow multiple values in salesforce Flow

Assignment: Owner is a variable with  allow the multiple values.
  
{!owners} Add {!$Record.Diabetes_Specialist__r.Id}
{!owners} Add {!$Record.Sales_Specialist__r.Id}
Result
{!owners} = "[,]"
{!owners} ([,]) Does not equal null
All conditions must be true (AND)
Requirement is:
An Decision Element was added need to check if null or blank or empty values go to default out come else enter into the block.

Criteria:

i had added isnull equals False, even though its entering in the block..

If  owners value is "[,]"  //how to check value using the isblank or isempty or is null.

Thanks
Sai PraveenSai Praveen (Salesforce Developers) 
Hi,

I have faced the same issue while testing in personal Org. To resolve I have checked the null check before assignemnt and it that is not Null then only I have added to the collection using assignment.

Let me know if you face any issues.

If this solution helps, Please mark it as best answer.

Thanks,