If you changed your Notion workspace time zone and a formula that previously displayed a date now shows a blank cell, the issue is likely a mismatch between the time zone offset and how Notion stores date values internally. Notion uses Coordinated Universal Time (UTC) for all date and timestamp data, and formulas that rely … Read more
You created a formula in a Notion database that pulls data from a Relation property. When the relation is empty, the formula shows the word “Undefined” instead of a blank or a fallback value. This happens because Notion formulas treat empty relation cells as missing data rather than an empty string. This article explains exactly … Read more
Notion formulas are powerful, but they have strict limits. One common problem occurs when you write a formula inside a lambda function, such as map() or filter(), and try to reference a relation property directly. The formula returns an error or unexpected results. This happens because lambda functions in Notion formulas cannot access relation properties … Read more
You want each row in a Notion database to contain a clickable URL that changes based on the data in that row. Manually typing a URL for every entry wastes time and invites typos. The Notion link() formula function lets you construct a URL dynamically using values from other properties in the same row. This … Read more
You have a Notion database formula that uses the at() function to retrieve an element from an array. The array contains valid data, and the index you pass is within bounds. Yet the formula returns an empty value instead of the expected element. This problem occurs because Notion formula arrays are zero-indexed and the at() … Read more
You want to avoid forgetting when your Netflix, Adobe, or other subscriptions renew each month. Notion databases can calculate renewal dates and show reminders, but writing the formula can be confusing. The core challenge is converting a start date and billing cycle into a future renewal date, then comparing it to today. This article explains … Read more
Notion formula results sometimes display fewer decimal places than expected. This happens when a formula performs arithmetic on numbers from different sources, such as a rollup and a manually typed number. The root cause is Notion’s internal handling of number types, which can round results to the least precise input. This article explains why decimal … Read more
Notion formulas can manipulate data from relation and rollup properties, but searching within an array of related items requires a specific function called find(). Without this function, you cannot check whether a related page meets a condition or extract a value from a specific item inside the array. This article explains how the find() formula … Read more
When working with Notion databases, you may find that a formula referencing a rollup property fails to calculate correctly when the rollup itself pulls from another rollup across multiple related databases. This limitation causes frustration because you expect the formula to sum, count, or average values from a chain of relations, but it returns an … Read more
You need to calculate the next occurrence of a recurring event in a Notion database. Notion formulas do not have built-in support for recurring dates like a calendar app. This article shows how to build a formula that calculates the next occurrence date based on a start date and a recurrence interval in days. You … Read more