Step 2.2: Add a Collection Variable Text to Store Record Ids

1. Under Toolbox, select Manager, then click New Resource to store the opportunity or quote(s) ids. 
2. Input the following information: 
   1. ResourceType: Variable
   2. API Name: varT_recordIds
   3. Data Type: Text
   4. Default Value: {!$GlobalConstant.EmptyString}
   5. Check Allow multiple values (collection) 
   6. Check Available for Input
   7. Check Available for Output
3. Click Done.

1. On Flow Designer, click on the + icon and select the Decision element. 
2. Enter a name in the Label field; the API Name will auto-populate.
3. Under Outcome Details, enter theLabel theAPI Name will auto-populate.
4. Condition Requirements to Execute Outcome: All Conditions Are Met (AND)
   1. Row 1:
      1. Resource: {!$Record.StageName}
      2. Operator: Equals 
      3. Value: Closed Lost
5. When to Execute Outcome: Only if the record that triggered the flow to run is updated to meet the condition requirements.
6. Click Done.

Step 2.5: Add a Get Record Element to Find the Related Quotes 

1. On Flow Designer, click on the +icon and select the Get Element element.
2. Enter a name in the Label field; the API Name will auto-populate.
3. Select the Quote object from the dropdown list.
4. Select All Conditions Are Met (AND). 
5. Set Filter Conditions
   1. Row 1:
      1. Field: OpportunityId
      2. Operator: Equals
      3. Value: {!$Record.Id}
6. How Many Records to Store:
   1. select All records
7. How to Store Record Data:
   1. Choose the option to Automatically store all fields
8. Click Done.

Step 2.6: Using Decision Element to Check If Quotes Was Found or Not

Now, will use the Decision element to check if the previous Decision element returns quote records or not. 

1. On Flow Designer, click on the +icon and select the Decision element.
2. Enter a name in the Label field; the API Name will auto-populate.
3. Under Outcome Details, enter the Label the API Name will auto-populate.
4. Condition Requirements to Execute Outcome: All Conditions Are Met (AND)
   1. Row 1:
      1. Resource: {!Get_Quotes}
      2. Operator: Is Null 
      3. Value: {!$GlobalConstant.False}
5. When to Execute Outcome: If the condition requirements are met.
6. Click Done.

Step 2.7: Add a Loop Element to Retrieve Records from Record Collection Variable

1. On Flow Designer, below the Yes node, click on the +icon and select the Loop element.
2. Enter a name in the Label field; the API Name will auto-populate.
3. For Collection Variable select {!Get_Quotes}.
4. For Specify Direction for Iterating Over Collection select the option First item to last item.
5. Click Done.

Step 2.8: Adding an Assignment Element to Assign the Quote Id to the Collection Variable 

1. On Flow Designer, click on the +icon and select the Assignment element. 
2. Enter a name in the Label the API Name will auto-populate.
3. Set Variable Values
   1. Row 1:
      1. Field: {!varT_Ids}
      2. Operator: Add
      3. Value: {!Loop_through.Id}
4. Click Done.

Step 2.9: Add Action – Call an Apex Class

1. On Flow Designer, click on the +icon and select the Action element.
2. Search and select the DeleteOpenTasks apex class from the dropdown menu
3. Enter a name in the Label field; the API Name will auto-populate.
4. Set Input Values:
   1. Field: Record Ids
   2. Value: {!varT_Ids}
5. Click Done.

Once everything looks good, perform the steps below: 

1. Click Save.
2. EnterFlow LabeltheAPI Name will auto-populate.
3. Click Show Advanced.
4. API Version for Running the Flow: 55
5. Interview Label: Query Records by List of Ids in Flow {!$Flow.CurrentDateTime}
6. Click Save.