MSCRM 2011 - [FormatException: String was not recognized as a valid DateTime.] Lead Create/Update

Hi,

Please can anyone can guide me to resolve the issue. Suddenly dont know for what reasons started getting this issue.

ISSUE : On lead form I have 5- 7 date time fields. yone or more fileds (Date time fields) is updated/changed and I try to save the form get below error.

Resolutions Tried :

1. Diabled all scripts on lead page.

2. Diabled all plugins.

3. Deactivated all workflows.

4. Imported old customizations files in system (Backup file taken before last customizations update)

Still facing the same issue detailed below.

Microsoft CRM Error Report:

Error Description:

An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Error Details:

Exception of type 'System.Web.HttpUnhandledException' was thrown.

Full Stack:

[FormatException: String was not recognized as a valid DateTime.] at System.DateTimeParse.Parse(String s, DateTimeFormatInfo dtfi, DateTimeStyles styles) at Microsoft.Crm.Application.Platform.AttributeCollection.CreateValueFromDateTimePropertyValue(String name, Object value) at Microsoft.Crm.Application.Platform.AttributeCollection.SetEntityProperty(Entity entity, String name, String childAttributeName, Object parentProperty, AttributeMetadata attributeMetadata, Object value, IOrganizationContext context) at Microsoft.Crm.Application.Platform.AttributeCollection.Insert(String name, Object value, Boolean throwIfKeyExists) at Microsoft.Crm.Application.Platform.EntityProxy.SetData(XmlNode entityElement) at Microsoft.Crm.Application.Forms.EndUserForm.RetrieveParametersForEventDefault() at Microsoft.Crm.Application.Forms.EndUserForm.Initialize(Entity entity) at Microsoft.Crm.Application.Forms.CustomizableForm.Execute(Entity entity, FormDescriptor fd) at Microsoft.Crm.Application.Components.PageHandlers.LeadRecordPageHandler.ConfigureFormHandler() at Microsoft.Crm.Application.Components.Utility.GenericEventProcessor.RaiseEvent(String eventName) at Microsoft.Crm.Application.Controls.PageManager.OnPreRender(EventArgs e) at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

[HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown.] at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Error Number:

Source File:

Not available

Line Number:

Not available

Error Trace:

Request URL:

Any help or Suggestions are appreciated.

Regards,

Sarfaraj