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The following article is a step-by-step guide on how to set up Supplemental Data Source in Google Merchant Center Next for uploading supplemental feeds created using the Smart Product Labeler tool.
Getting Started
To start creating supplemental data sources in Google Merchant Center Next, enable the 'Advanced data-source management' add-on from the settings.
You can skip this step if you're already using supplemental data in your merchant center account.
How to set up a new Supplemental Data Source
1. Create a supplemental data source that adds product data from a file
Click on the 'Add supplemental product data' button under the Supplemental Sources section of the Data Sources page. This will prompt you to select the input method for the supplemental data.
Select 'Add product data from a file' and paste the link generated by the Smart Product Labeler tool.
2. Associate the new supplemental data to the corresponding Primary Data Source(s)
After adding the link to the supplemental data source file generated by Smart Product Labeler, you'll have to associate it with your primary data sources. You'll encounter the following configuration options:
Feed label: If you have multiple primary feeds with different feed labels, select the appropriate feed label for this association.
Language: Choose the language that corresponds to the data being added.
Primary Data Source: Select the primary data source that is associated with the feed label selected above.
We suggest selecting all available primary data sources for the tool to be able to optimize them together using the same data file.
In case you have different feed labels associated with different primary data sources, you will need to repeat the process and create multiple supplemental data sources, one for each feed label available.
You can use the same output link from the Smart Product Labeler tool multiple times. The tool will add all the products into the same supplemental data file.