Since Crm.pad 4.15 has been released, we have noticed requests regarding an issue of the Date/Time validation while creating an Activity.
This is due to the correction of an internal Defect.
If you encounter this issue, please ensure you have Function Name correctly defined for four Date and Time fields in the Edit mask of the MA, or your custom field group as shown below:
If you have more question you can refer to this link or contact the Support.
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