I'm trying to create a custom error message for a grid question that is column-oriented. The first column asks how many total items a respondent consumes, and the second column asks how many of one subset of items a respondents consumes.
For example, this means that if they select 3-5 total items (row 2) for column 1, they shouldn't be able to select 5-7 subset items (row 3) for column 2. Instead, they should only be able to select rows 2 or 1 for column 2 (aka the row selected in col 1 and any lower rows).
thanks in advance for the help!