This scanning message is a special case of message 174500 which alerts you to the fact that a particular page of a given template seems to contain no tokens whatsoever.
This message is only generated if the current template is set to allow a grid split (that is to say, try to make the grid splittable), in which case the design-time message 187525 will also be generated.
Solution 1
If the template from which this message originates is set to allow a grid split, then determine if you really need to allow this grid to split and, if not, change that setting.
Solution 2
This message can be generated if none of the tokens on the page has a DayValue, such as would be the case with a single [yyyy] token at the top of a recap or notes page.
To avoid ambiguity, change that token to either [1yyyy] (if the grid is based on the first of the month or the first of the year) or [8yyyy] (if your grid is based on the Monday before the first of the month or the first of the year).
Solution 3
If solutions 1 and 2 are not relevant, refer to the help topic 174500 for a detailed explanation of the possible causes for, and the solution to, the issue causing both the present message and message 174500.
Topic 174501, last updated on 05-Jul-2023