Create Pop Up Message Box Using Macros - 21/01/2023 21:04 EST

I am currently working on a workbook and ran into the need to create a message box using Macros. The criteria would be per every 25 entries a message pop up box would need to appear to remind the user to verify he's on the correct joint number. Thus, forcing the user to consistently double check himself & to minimize mistakes on data entry. The Macros is needed on two worksheets named BHA & Drill Pipe. For BHA it needs to cover columns D, E, O, P, Q, AB, AC, & AP. The range is 4:203 per every column on BHA. For Drill Pipe it needs to cover columns D, E, G, P, R, S, T, AD & AE. The range is 4:1003 per every column on Drill Pipe.