LEARNING POWER AUTOMATE – Handle Flow Trigger

As we all know that Microsoft Flow is also known as Power Automate.

So, it has some limitations as well. Like Request limit, Flow limits, etc. to know more about Limits and configuration in Power Automate,, click here.

Another important point about power automate is that it is priced based on the number of times the flow has been triggered.

So, today we will learn how can we restrict/filter our power automate trigger.

Here is the scenario, I have a custom entity(Blog Note) of activity type and I want my power automate to trigger on create of blog note record when it’s is created from the Contact entity.

Now, under the timeline section, I can see an extra activity entity named Blog Note under Account, Contact, Lead, and so on.

I have the power automate ready with me, which triggers whenever a record is created within the Blog Notes entity from any entity like account, contact, lead, and so on.

I want to restrict my flow run so that it triggers only when a user creates the blog notes from the Contact entity. If a blog notes is created from some other entity like account or lead then the flow should not trigger.

To handle this we need to go to the trigger step(Trigger on create of BlogNotes) setting.

Go to – trigger step Settings
Added the Trigger Condition

This is how we check if the regardingid is a contact entity then only the power automate trigger else it won’t.

I hope this helps!

Learning PowerAutomate – Get Option set label

Let’s learn how to get option set label, without query to string map table for retrieving the labels.

As, we know that querying to an entity option set field will give us the option set value not the label. So if we want to get the option set label against any value

Note*: we can use an expression to get option set labels.

I have an option set attribute named as Loan type, which is present on Lead entity.
Querying on Lead entity, for attribute Loan type. I get the option set value not the label.

Therefore, to get the label against the retrieved value. I went using replace expression:

replace(replace(replace(string(triggerOutputs() ? ['body/new_loantype']), '43260000', 'HomeLoan'), '43260001', 'BusinessLoan'), '43260002', 'PersonalLoan')

The expression replaces the option set value with the given label.
Example, whenever we get the loan type as ‘43260000’, using the expression I will get the result as “HomeLoan”.

Moving ahead, we can use the set variable step under our flow. Where we can use the expression based on the output we receive for the above steps.

Additionally on top of the above requirement handling process, I went into another scenario where the option set field was coming null.
Reason, the field was marked as optional field. So, now its a user choice to enter data for option set field or leave it as null.

So, whenever I was getting the null value for the option set field records, I was getting an error as: Invalid type. Expected String but got Null.

Therefore for handling the null value exception, I went using empty expression:

if(empty(string(triggerOutputs()?['body/new_loantype'])),'',replace(replace(replace(replace(string(triggerOutputs() ? ['body/ new_loantype']), '43260000', 'HomeLoan'), '43260001', 'BusinessLoan'), '43260002', 'PersonalLoan')

The above expression helps us in handling null value. When we are passing loan type value to another variable of string type or to a child flow when the expected schema is of type “string”.

I hope this helps anyone! 😊