Product Reviews Diagnostics in Merchant Center
Product Reviews Diagnostics is a section of Merchant Center that offers insight into your Product Ratings feed. When you upload a feed directly into Merchant Center, the Product Reviews Diagnostics feature displays information about your reviews, including:
- If the feed was uploaded successfully.
- Errors and warnings for missing or invalid data.
- Indication if strong, unique identifiers are present in the feed.
Status of your reviews
When a feed is uploaded, the reviews in the feed will fall into one of these categories:
- Disapproved: These need to be corrected or removed. These reviews did not process successfully because of errors in the feed. Verify that the reviews are formatted appropriately and run them through an XML validation tool. Use the "Reviews" section in the Product Reviews Diagnostics feature to identify errors in the data feed and correct them.
- Needs Review: These reviews have successfully processed but may be missing values or the recommended unique identifiers. Unique identifiers make it more likely for your reviews to appear in Shopping results. You can learn about unique identifiers in our Help Center. Improve the quality of your feed by correcting data issues with the help of the Product Reviews Diagnostics feature.
- Ready to Serve: These reviews have processed successfully and contain all recommended identifiers. No action is needed from you.
Errors, warnings and notifications
The Product Reviews Diagnostics feature in Merchant Center will display issues in the feed you've uploaded. Use the "Learn More" links in the Diagnostics feature for guidance in correcting issues with the feed, then re-upload the feed. Consult the Product Reviews Feed Guide for an overview on how to correctly format your feed.
Error: This refers to reviews that did not process successfully and cannot be used. Verify that the review is formatted correctly based on the Product Ratings feed specifications , and contains all recommended identifiers.
Warning: This refers to issues that may prevent a review from appearing. To improve the quality of a review, verify that the review is formatted correctly and contains all recommended identifiers.
Notification: This refers to reviews that are not eligible to show. No action is required on your part and we recommend that you take a look at our program policies when setting up your feed..
Document is empty
The feed does not contain any data! Refer to the feed guide
for a sample feed and a guide to formatting a Product Ratings feed.
Invalid values provided for review type or collection method
The collection method is unknown. The <collection method>, an optional field, does not match with the valid values of "unsolicited" or "post_fulfillment". Refer to the feed guide
for details on what these include.
Invalid XML character
There is an invalid XML character in your feed. Ensure that strings and characters in your feed are properly escaped.
Invalid XML start tag
There is an invalid XML start tag in your feed. Refer to the feed guide
for a list of correct start tags for your Product Ratings feed.
No review text provided
Review text has not been provided in any of the following tags: <pro>, <con> or <comment>. Reviews without associated review text are not used by Google. If this information has been left out, please add the review text to the feed. Refer to <review> in the feed guide
for details on formatting this information.
Open and close XML tag mismatch
The feed contains a pair of opening and closing XML tags that do not match. Refer to the feed guide
for a list of correct opening and closing tags for your Product Ratings feed.
Review rating is invalid
The rating value provided in the review is invalid. It is highly likely that the provided value falls outside the inclusive range defined by the minimum and maxium values. The error message for this issue in Product Reviews Diagnostics should show you the minimum and maximum values currently in your feed, if they were included. The <ratings> element contains the element <overall> with values for "min" and "max". Be sure to refer to the feed guide
for instructions on formatting this element.
The feed failed to parse and no reviews were extracted. Try verifying your feed with an XML schema validator, then re-upload your feed. More about XML schema validators can be found on our Help page
Title type is invalid
The title of the review is invalid and you will need to revise the <title> element with a nonEmptyStringType. Refer to the feed guide
to see how <title> and other <review> elements can be added to the feed.
An XML error occurred while parsing the feed, and it is possible that none of the reviews were extracted. You will need to refer to the context of the error to find where it is in the feed file. For help with finding and addressing the specific error, please use an XML schema validator. More information on XML schema validation can be found on our Help page
XML tag not closed
There is an incorrect closing tag in your feed. Refer to the feed guide
to understand how to properly close tags in your feed.
Author name is missing
Include the name of the author of the review. The <name> element is an extension of the nonEmptyStringType and contains the name or alias of the reviewer. If the reviewer is anonymous, you can indicate this with the "is_anonymous" attribute. Guidance on formatting the <reviewer> <name> element can be found in our feed guide
Product ID is missing
The <product_ids> tag is missing. See the sample feed in our feed guide
to understand how this element should be implemented in the feed.
Product ID is missing data
The review is missing the <product_ids> element, which is essential for matching reviews to products. See our feed guide for details on elements that can be used with <product_ids>. The most valuable product ID is a unique identifier such as GTIN. More information about unique identifiers may be found in our Help Center
Product ID is unknown
The <product_ids> tag has a value we cannot identify. Some of the values that can be implemented for this tag include unique identifiers such as GTIN. See our feed guide
for details. More information about unique identifiers may be found in our Help Center
Review contains HTML cruft
This review has unrecognizable or invalid symbols. Examples include the repetitive use of punctuation marks. Please remove unnecessary symbols from the review and refer to the feed guide
for a sample feed.
Strong identifiers (GTIN) not provided
Google matches reviews to products based on globally unique product identifiers. Recommended global identifiers for review matching are GTINs. More information about unique identifiers may be found in our Help Center
. At least one of the recommended identifiers should be added to the product data in each review for optimal review matching. Instructions for adding GTIN can be found in our feed guide
. If it is impossible to provide these globally unique product identifiers, Google will attempt to match a review based on other metadata information such as SKU and product URLs; however, the matching issue may persist.
Timestamp is invalid
The timestamp format is invalid. Timestamps are required to indicate when the review was written and can include date, time and timezone information, eg.
Refer to the feed guide
to see how <review_timestamp> is implemented in a sample feed. You may also want to refer to a standard such as the one on this page
for more information on correctly formatting timestamps.
URL is invalid
The URL provided is not valid. The elements <review_url> and <product_url> are required in the feed. The <review_url> is an extension of the httpUrlType and contains the link to the landing page of the review. The <product_url> is the URL of the product and may have the same value as the <review_url> element if the review URL and the product URL are the same. For details on how to format these elements, look at <review_url> and <product_url> in the feed guide
Review is of low quality
A quality analysis of the review has indicated that it does not meet the quality threshold for being displayed.
Timestamp is empty
The timestamp field is empty. Timestamps are required to indicate when the review was written and can include date, time and timezone information, eg.
Refer to the feed guide
to see how <review_timestamp> is implemented in a sample feed. Also try verifying your feed with an XML schema validator, then re-uploading your feed. More about XML schema validation can be found on our Help page.