Unable to save changes

[Adolfo_Enrique_]

Hello everyone, please, I need help with the following problem. I don't understand why it doesn't allow me to save a change. As can be seen in the image. The START value of true enables the StartTime data so that the user can enter a value. The problem occurs when I give true value to START. I cannot understand why it displays this message, therefore the changes made are not saved. Who can tell me what the problem is?

[Steve]

I don't believe "Unable to save changes" is an AppSheet error message. Instead, I suspect the columns displaying that error are displaying a custom error message because the column values failed the column Valid if conditions. Please post screenshots of the column configuration and the Valid if expression of the affected columns.

[Adolfo_Enrique_]

Hola Steve!!  Cómo estás! Hace mucho tiempo que no te molesto por aquí, y me da gusto conocerte y tu siempre buena disposición! Siempre agradezco tu ayuda! Steve, adjunto la imagen, como puedes ver no tengo validaciones que realizar sobre esos datos!

[Steve]

Thank you for the screenshots. In them, I see you are using AppSheet Database as your data source. The error may be coming from there. Make sure the column type in the app matches the column type in the database. Also make sure the database column allows updates.

[Adolfo_Enrique_]

Thanks Steve, I verified what you told me and the data type of the columns matches. And the data can be modified, too.

[Steve]

Thanks! I see nothing wrong there. Next to check: does the app table allow updates? Does the database?

[Adolfo_Enrique_]

Yes steve, I have carried out a test modifying another column of the table and I can see that the changes are persisted without problems

[Steve]

I'm afraid I have no idea what the problem is. I have to refer you to AppSheet Support for help with this. Good luck!