This is a bug in Creatio. Contact support and they can apply a fix to your system. If needed, you can have them refer to the case I opened on this #SR-01400125. 

Essentially, there's a bug that incorrectly checks the dates for trigger emails (since trigger emails don't need a start date as they're started from the campaign)

Ryan 

...

Hello,

Thank you for reaching out. Ryan is absolutely correct.

This issue has been identified and a fix will be available in the upcoming Creatio 8.3.1 release. Once that version is available, you can update your site to resolve the error.

Alternatively, if you'd prefer not to wait, you can request that the fix be applied to your current version by contacting our support team directly.

Record deactivation on Freedom UI page | Community Creatio

Hi! 

In the mobile app, lookups are sorted by the display value by default.
Sorting by a custom column isn’t available through the Mobile Wizard, but it is possible via customization using the Mobile SDK.

To do this, you’d need to:

• Set the sort order in the mobile list settings.
• Connect it via the Mobile Application Manifest.

Here are some helpful docs from Creatio Academy:

Mobile list customization 
Mobile application manifest

thanks but those links dont work

I need to sort lookup fields values on page, not the  list

Hello, Tomasz,

Since you mentioned a different column in your question, let's clarify the point: Do you need to change the sorting of the values in the drop-down list (from smallest to largest, from A to Z) or do you need to filter the values in the drop-down list depending on the value of another field in the related entity?

It will be great if you can describe your task and provide any screenshots that will help us understand the task.

I need to change the sorting of the values in the drop-down list by newly added column to this drop down's lookup object

By default is by name or displany name, I addred numeric column for sorting to the lookup object, I need values to be sortet by this new column's value

Here is a code sample on how I solved it, maybe it helps somebody:

handlers: /**SCHEMA_HANDLERS*/[
    {
        request: "crt.HandleViewModelAttributeChangeRequest",
        /* The custom implementation of the system request handler. */
        handler: async (request, next) => {
            if (request.attributeName === 'GridDetail_u6gv7vy_ActiveRow') {
                const activeRowId = await request.$context.GridDetail_u6gv7vy_ActiveRow;
                const gridDetail = await request.$context.GridDetail_u6gv7vy;
                const defaultType = await request.$context.UsrLookupFileType;
                gridDetail.forEach((item) => {
                    if (item.attributes.GridDetail_u6gv7vyDS_Id == activeRowId
                       && !item.attributes.GridDetail_u6gv7vyDS_Type
                       ) 
                    {
                        item.attributes.GridDetail_u6gv7vyDS_Type = defaultType;
                    }
                });
            }
            
            return next?.handle(request);
        }
    }
]/**SCHEMA_HANDLERS*/

Please change "GridDetail_u6gv7vy" name to your list name and also attribute names ("item.attributes.GridDetail_u6gv7vyDS_Id" or "GridDetail_u6gv7vyDS_Type").