Notion API: Filtering Database Entries by Unique Identifier

I’ve discovered that Notion now lets you assign a unique identifier to database records. However, I haven’t found guidance on querying a record using this property. I attempted to filter a record by its unique ID, but received an error stating the property wasn’t found even though it’s correctly named. Here’s an alternative example of a request payload:

{
  "queryData": {
    "field": "UniqueKey",
    "valueCheck": {
      "matches": 92
    }
  }
}

Any suggestions on how to properly filter records using this unique identifier?

I had a similar issue when working with unique identifiers in my Notion database. Initially, I encountered an error that the property wasn’t found despite verifying its name. I eventually discovered that Notion’s API may distinguish between properties used as unique identifiers and standard text or number fields. In my case, adjusting the type to text and ensuring that my filter payload exactly matches the property’s setup in the database schema was crucial. I also found that reviewing the updated documentation and experiments helped pinpoint the correct method to handle this type of filtering.

In my experience, successfully filtering by a unique identifier in Notion often involves verifying that the property’s internal configuration in the database exactly aligns with your request payload. I encountered similar errors and discovered that Notion distinguishes between standard properties and fields designated to serve as unique identifiers. It helped to double-check the property type and ensure consistent naming, including considering the case sensitivity. Sometimes, using the internal property ID instead of the visible name can resolve the issue, as Notion may be expecting a different format in the query.

hey, i ran into this too. check if the uniqueid is indeed saved as a text value instead of a number. sometimes the type mismatch can cause the api to not find the property. i had to tweak my schema settings and it worked fine.

In my experience working with Notion’s API, I found that filtering by a unique identifier can be tricky if the property isn’t set up exactly as expected. I discovered that ensuring the identifier is stored as a string instead of a numerical value was key. Also, confirming that the internal property ID used by Notion matches your query helped resolve my issues. It required a careful match between the property configuration and the API request payload. Additionally, I learned to double-check for any minor details in the schema that might cause the filter to fail.

My investigation revealed that in addition to confirming the property type as a string, it’s crucial to ensure that the column name exactly matches what is defined internally. I encountered a similar difficulty when filtering by unique identifiers, and it turned out that some properties weren’t exposed as expected. I found that using the internal property ID sometimes bypassed naming discrepancies and improved reliability. Also, always verify that your API version supports these modifications. Meticulously comparing your schema settings with the API documentation helped unveil hidden nuances in data handling and filtering logic.