Applying a patch takes your site down

This article talks about the issue where a patch you just applied takes your site down. To resolve it, you can remove the patch.

Affected products and versions

Adobe Commerce (all deployment methods), all supported versions
Magento Open Source, all versions

Issue

After you apply a patch, your site goes down.

Cause

This issue might appear because of a version incompatibility between the patch you just applied to your website, your customizations, other patches you had applied in the past, or some other error.

Solution

Remove the patch. The method of patch removal is different for Adobe Commerce on cloud infrastructure than for Adobe Commerce on-premises and Magento Open Source.

Magento Open Source, all 1.X versions

For Magento Open Source 1.X versions,

Run the following SSH command: h SUPEE_patch --revert

Adobe Commerce on-premises, Magento Open Source, all 2.x versions

For Adobe Commerce on-premises and Magento Open Source 2.x versions,

Run the following SSH command:
```
patch -p1 -R %patch_name%.composer.patch
```
(If the above command does not work, try using -p2 instead of -p1)
For the changes to be reflected, refresh the cache in the Admin under System > Cache Management.

Adobe Commerce on cloud infrastructure, all versions

For Adobe Commerce on cloud infrastructure, all versions,

Remove the %patch_name%.composer.patch file(s) from the m2-hotfixes directory.

Commit and push your code changes:

git commit -m "Remove %patch_name%.composer.patch patch" && git push origin

How to apply a composer patch provided by Adobe in our support knowledge base.