Extracting invoice items from list items with the Power Automate Invoice Processing

[arneulland]

Hello forum members,

I'm seeking help with a specific task, and I've already followed (successfully) a guide to extract common invoice data. However, what I need help with now is extracting line items and adding them (column by column) to an Excel sheet in Sharepoint.

The item list appears to be read correctly, containing 5 items with their respective amounts.

The flow of the process is as follows:

The problem

I'm facing a challenge in getting the specific line items to be added to the Excel sheet properly. The current output either exports all together in one column (if using the line item all columns dynamic array) or doesn't produce the desired result.

Goal:
Per new invoice I want the excel sheet to create a new row where the line item amount is imported correctly to the specific column which corresponds with the line item description. If nothing is found then 0 or empty is okey.

It would then look like this (assuming 5 line items)

At the moment, the situation looks like a mess:

PS: I have not found a way to manually create dynamic content per header/line item description and I suspect that is the main issue. Said differently, I cannot add line_item_amount per line item description and that is the problem.

I would greatly appreciate any guidance or suggestions to help me achieve the desired output. Thank you in advance for your assistance!

[JGT]

One thing I've had to do in the past with data that may be formatted weirdly to get the desired output is converting the data to JSON then using instead of the HTML table to get the variables you are looking for using the Parse JSON function to get the desired output with variables. 

Without knowing exactly what that variable looks like before outputting to the excel file. I'd suggest using Bing Chat to say something like "parse this json data (copy paste the output of the json step) to an excel file. I've had pretty good success with that output being able to parse complex tabled data. 

[arneulland]

Interesting. ChatGPT also suggested using variables as a fix:

Step 1: Set up AI Builder in Power Automate (if not done already).

• Ensure that you have access to AI Builder in your Power Automate subscription.

Step 2: Create a new Power Automate flow.

• Go to the Power Automate portal (https://flow.microsoft.com) and sign in.

Step 3: Select a trigger for the flow.

• Use a trigger that corresponds to the method of importing invoices. For example, you can use the "When an email with an attachment is received" trigger if you receive invoices via email.

Step 4: Add an action to extract invoice data using AI Builder.

• Add an action using the AI Builder "Extract data from forms" or "Process and save the data" action. This will allow you to extract data from the invoice document.

Step 5: Configure AI Builder action.

• Select the appropriate model for invoice processing and map the fields you want to extract, such as line item amounts.

Step 6: Initialize a variable to store the extracted line items.

• Add an action to initialize a variable to store the line items. Use the "Initialize variable" action and set it to an array type.

Step 7: Loop through the extracted data (Apply to each).

• Since the extracted data may contain multiple line items, use the "Apply to each" action to loop through each line item.

Step 8: Add actions to append line item data to the variable.

• Within the loop, use actions like "Append to array variable" to add the line item data to the variable. Map the extracted line item amounts to the appropriate column headers in the variable.

Step 9: Add an action to update the SharePoint Excel table.

• After the loop, use the "Update a row" action in SharePoint to update the Excel table with the line item data stored in the variable. Map the data from the variable to the corresponding columns in the SharePoint Excel table.

Step 10: Complete the flow.

• After adding all the necessary actions, save and test your flow to ensure that it extracts the line items and updates the SharePoint Excel table correctly.

By following these steps, you should be able to extract line items from the invoice using AI Builder and populate the SharePoint Excel table with the extracted data in an orderly fashion. Make sure to review the actions and adjust the flow based on your specific requirements and the AI Builder model you are using.

[arneulland]

Testing with variables now but cannot see how I can create names per variable so that I know which one belongs to which line item.

[JGT]

The way that is happening you are initializing variables for each item, initialize the variable here

then append your array where you are currently initializing it. 

[arneulland]

Hi,

What should I choose in this instance to give the variable a value that fits (there is no way to connect to the line items and specify which amount I want to set the variable as)

[arneulland]

The above refers to the fact that I cannot find a way to set a variable to "each item" as there is no way to distinguish the items. 

The dynamic array just state "line item amount (text)".

[JGT]

You will initialize the variable like you are doing, add the items in the loop like you had it before to "add those items" then call that variable later. So for example the order would be:
1. Create the variable
2. add all the items to the variable
3. do any formatting you need to on the variable you added items to
4. use the variable

[arneulland]

Unfortunatly cannot follow your suggestion.
1) I do the following to create the variable (the apply to each comes automatically when using line item)

 2) When trying to use the variable again  it's impossible

Also tried to save but get the following error: Flow save failed with code 'InvalidVariableInitialization' and message 'The variable action 'Initialize_variable_2' of type 'InitializeVariable' cannot be nested in an action of type 'Apply_to_each_3'.'.

[JGT]

Here I show you 🙂 I created an example array "data" with the  [red,green,blue] in an earlier step. Then initialized a blank array, incremented the new blank array in a loop FOR all the items in "data" and sent a teams message to myself of the current item in the array its LOOPING through. 

The teams messages I got looks like this:

Does that make more sense? The value of the array named "Add Data to me" would be [red,green,blue] now as well.

[JGT]

Also to note, in your example where you need to do some formatting to "sanitize" the data before inputting it to an excel file. You will want to do the formatting before you add the variable to the append array variable. If you don't want to use an "Array" and instead would use an "object", you can hand it json data which seems in my experience to be handled better by Power Automate. 

[arneulland]

Appreciate the help. Slowly getting to a solution it seems : ) I followed the steps but when saving I get the error:

Flow save failed with code 'InvalidTemplate' and message 'The template validation failed: 'The inputs of template action 'Add_a_row_into_a_table' at line '1 and column '11412' is invalid. Action 'Apply_to_each_2' must be a parent 'foreach' scope of action 'Add_a_row_into_a_table' to be referenced by 'repeatItems' or 'items' functions.'.'.

Am I missing something here?

 

 

[arneulland]

Also tried to apply to each items in the last section but that didn't change anything

 

 

[arneulland]

Okey, saw an error that I did and appended the variable within the apply to each together with the Add a row into a table.
 

 

Now this doesn't really solve the issue because the output looks like this.

The goal was to get the output mapped out in one row for the right column and not 5 rows per line item. 

So I'm still struggling with the basic issue
- How to get the line items mapped into the right column when I add an excel row

[arneulland]

Like this. If no line item is found with the right name then skip (invoices can have different fields so only want the items to be aligned with the text)

[arneulland]

Please note that I have no problem getting the spesific line items per row as shown below.

It's about that I only want 1 row with the numbers aligned per column

 

[arneulland]

Output comes as this if I set every variable equal to line item amount, which is not very helpful

[arneulland]

Update: Decided that it was too difficult to get the line items in one row so created this simple solution instead.

One day I need to learn how to extract the specific amount per line item but this will do. 

Thanks for the help!