Magento 2.2.8 Can't save products after updating

[Ctucker9233]

After updating to 2.2.8 I can't save a product after updating it. Clicking the save and close button appears to do nothing. No error messages appear.

Preconditions (*)

Magento 2.2.8
Some third party extensions installed although they have all confirmed for me that it has nothing to do with their extensions.

Steps to reproduce (*)

1. Make a required field in advanced inventory
2. Open a product to edit it
3. Make changes
4. Click save and close

Expected result (*)

1. Product saves successfully

Actual result (*)

1. Nothing happens when the button is clicked. No error messages appear to indicate missing information.

After some useful comments, the cause of this is an error that is thrown in the advanced inventory options. This remains invisible unless the user manually expands the advanced inventory options. An error flag should appear that indicates the location of the error.

[m2-assistant]

Hi @Ctucker9233. Thank you for your report.
To help us process this issue please make sure that you provided the following information:

• Summary of the issue
• Information on your environment
• Steps to reproduce
• Expected and actual results

Please make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce. To deploy vanilla Magento instance on our environment, please, add a comment to the issue:

@magento-engcom-team give me 2.3-develop instance - upcoming 2.3.x release

For more details, please, review the Magento Contributor Assistant documentation.

@Ctucker9233 do you confirm that you was able to reproduce the issue on vanilla Magento instance following steps to reproduce?

• yes
• no

[Ctucker9233]

@magento-engcom-team Give me 2.2-develop instance with sample data

[magento-engcom-team]

Hi @Ctucker9233. Thank you for your request. I'm working on Magento 2.2-develop instance for you

[magento-engcom-team]

Hi @Ctucker9233, here is your Magento instance.
Admin access: https://i-22274-2-2-develop.instances.magento-community.engineering/admin
Login: admin Password: 123123q
Instance will be terminated in up to 3 hours.

[Ctucker9233]

@magento-engcom-team how can I get some sample data in this instance? Without it, I can't confirm. Adding new products and then later editing those works just fine. It is only products that existed prior to 2.2.8 that are affected.

[mad-develop]

@Ctucker9233 i expierienced the same problem. For me there where custom settings in the "Advanced Inventory" ("Maximum Qty Allowed in Shopping Cart" was 0 so the form validation failed.) Cost me several hours to figure this out. Maybe its the same for you.

[nadeefit6]

This is probably a missing required product attribute or field in a different tab.
Other than that this issue cannot be reproduced in 2.2.7.

[steinkopffp]

I faced a similar issue is which was caused by a change on the attribute Maximum Qty Allowed in Shopping Cart. Push the save button and look in modals like Advanced Inventory and search for an error inside modals.

[Ctucker9233]

@mad-develop at @steinkopffp I will look at that right now. Thank you!

[Ctucker9233]

@mad-develop @steinkopffp that was it! Now all we need is for @magento-engcom-team to add an error message that validates advanced inventory so that more people like me don't spend hours banging their heads against a wall.

[m2-assistant]

Hi @engcom-backlog-nazar. Thank you for working on this issue.
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