Condition: if string is equal to null not working

[bdc604]

I have an empty string initialized, followed by a condition; if string is equal to null.

Problem: the logic is following the wrong path, should be the yes side. What am I doing wrong?

I tried rebuilding in case the flow corrupted or something, same results.

[efialttes]

@bdc604 

Have you tried with coalesce() function as a workaround?

https://docs.microsoft.com/en-us/azure/logic-apps/workflow-definition-language-functions-reference#c...

equals(coalesce(variables('xStringR'),'MyVariableIsNull'),'MyVariableIsNull')

It can also helps you to doublecheck if your variable is null from service logic point of view

Hope this helps

[v-bacao-msft · Accepted solution]

Hi @bdc604 ,

If you do not set the initial value when initializing String variable, you do not need to configure the parameters on the right when configuring Condition.

Image reference:

Flow run history:

Please take a try again.

Best Regards,

[nguyenductien]

Thank you!

I left the value empty, and it's okay.