This feature is now replaced with automations.
Migrating from auto-fill rules to automations
As of October 28, 2020, the language auto-fill rules feature is considered to be obsolete and was superseded with automations. Still, if you have auto-fill rules enabled in your existing projects, these won't be converted automatically. These rules will still work but we recommend migrating to automations as soon as possible.
To achieve that, open your project and proceed to More > Settings > Automations. You will see the following screen:
Press "convert it to Automations" link (inside the warning banner) to migrate right away. Still, it is recommended to test automations in a separate project prior to migrating. Please note that automations are priced differently (learn more in the corresponding documentation).
If you choose to keep using language auto-fill rules in the existing projects, please note that they will stop working if you ever hit the maximum automations limit. For example, if your subscription plan supports only 25 automations per team, and you exhaust this quota, then all language auto-fill rules for the team will also stop working.
Creating auto-fill rules
Often there are several language variations, with only minor differences, within the same project, e.g. English, English US and English UK.
Instead of copy/pasting the translations, as you update one of the languages set up auto-fill rules in order to perform automatic updates.
Create rules by navigating to project settings > Language auto-fill.
Select a language to monitor for changes (source language) and one or more languages to auto-fill to (target languages).
Enabling the Mark as Unverified on update switch will mark the automatically updated translations with an Unverified flag so translators can easily filter out and post-edit these items.
By default the system will only update empty translations in the target languages, however you may enable the Override flag to automatically fill in items that already containing a value.
You can set up multiple rules for different language pairs by clicking the Add another rule button and repeating the setup.