Plan B for after capturing attachment from emails flow failed.

[S_Tran]

I have created a flow for capturing email attachments & renaming those files to use specific filename then saving them in sharepoint.

When the email arrives it has multiple attachments. (1 xml, 2 pdf, and 1 htm file).

There is a pdf file with a filename format that includes an underscore, XXXXXXXXXX_XXXXXXXXXXXXXX.pdf (I wanted to use that filename format for all files). 

My goal is to save the xml file (which has to be renamed) and the pdf file that already has the underscore file format.

I used the set variable to capture that filename for renaming the xml.  

My current flow already achieved my current goal.  The problem is when the email arrives and it's missing that pdf file with the underscore (where I need to capture the variable), my flow fails and no attachments are created in sharepoint.  I want to edit this flow to save the xml using another filename format when that pdf file is missing & the variable cannot be set.  Please see my current screenshot of my flow.

Setting the Variable when there is the pdf file with underscoresaving the pdf that already has the underscore filename formatsaving the xml file with the set variable filename