How to deal with an empty XML File in Power Automate?

[SueA]

 I have an XML File generated by a PowerBI report and sent to us as an email attachment.

I have a FLOW1 that takes the Email attachment and places in a SP Library.

My Flow2 takes the File Content from SP Library and creates records in the SP List.

The FLOW2 works fine as long as there are records in the XML File.

However, we got an XML file with no records. My FLOW failed at Parse JASON step.

How do I circumvent this issue as every now and then there may be a file with no records - Just a header?!

I tried condition step with 

length(outputs('Get_file_content')?['body/value'])  greater than 0

and

it gave me the following error:

"InvalidTemplate. Unable to process template language expressions for action 'Condition' at line '1' and column '39899': 'The template language function 'length' expects its parameter to be an array or a string. The provided value is of type 'Null'. Please see https://aka.ms/logicexpressions#length for usage details.'."

Please help.

Thanks,
SueA

[v-chenzhi · Accepted solution]

Hi @SueA ,

When the xml file is empty, do you want to continue running the flow2 even if Parse JSON fails?

I found an alternative method for your reference, please try the following workaround.

Choose Configure run after, Select all these scope statuses you need.

Here is the expression:

result('Scope')[0]['status']

Best Regards,

Zhi Chen