Fixed Product Tax total on PDF for 2.3, Reference of PL #18649

[mahesh-rajawat]

Issue of Wee Tax When using FPT, the FPT-total show up at the cart/checkout but is missing at the pdf invoice.

Description (*)

If we enable FPT and add it to the product, after placing order, FTP amount field is displaying on Order view, Invoice view etc, when downloading Invoice Pdf, FTP amount field was missing. In this pull request
i have fixed it.

Fixed Issues (if relevant)

1. Missing Fixed Product Tax total on PDF #18617
2. ...

Manual testing scenarios (*)

1. Enable FPT from Stores > Settings > Configurations > Sales > Tax > Fixed Product Taxes.
2. Created a new product attribute of type FPT.
3. Added this attribute to Default attribute set.
4. Saved product with FTP details.
5. Placed an order and generated invoice.
6. Print pdf.

Reference PL of #18649

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[magento-engcom-team]

Hi @maheshWebkul721. Thank you for your contribution
Here is some useful tips how you can test your changes using Magento test environment.
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[magento-engcom-team]

Hi @vadimjustus, thank you for the review.
ENGCOM-3393 has been created to process this Pull Request

[magento-engcom-team]

Hi @maheshWebkul721. Thank you for your contribution.
We will aim to release these changes as part of 2.3.1.
Please check the release notes for final confirmation.