Flow save failed with code 'OpenApiOperationParameterValidationFailed' and message 'Input parameter 'item' validation failed in workflow operation 'Create_event_(V4)':

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Amit_Sharma 1,569 Super User 2024 Season 1 on at

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Re: Flow save failed with code 'OpenApiOperationParameterValidationFailed' and message 'Input parameter 'item' validation failed in workflow operation 'Create_event_(V4)':

Hi @Veblitz,
Please Enter Valid Time In start and end Time field of Create event V4 Action Currently you are trying to enter date time both In String Format please use expression for format date time that return by get items action.

formatDateTime(items('Apply_to_each')?['StartTime'],'yyyy-MM-ddTHH:mm:ss')

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Amit_Sharma 1,569 Super User 2024 Season 1 on at

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Re: Flow save failed with code 'OpenApiOperationParameterValidationFailed' and message 'Input parameter 'item' validation failed in workflow operation 'Create_event_(V4)':

Hi @Veblitz,
If you want to Enter date time Both in start and end Field of create event v4 Action, you can use Expression For it because get items Action return date Time in string format, so you have to format date time string to Date time type.

formatDateTime(items('Apply_to_each')?['StartTime'],'yyyy-MM-ddTHH:mm:ss')

'StartTime' Is Column name in SharePoint list.

After doing this you are good to go.

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Veblitz 2,249 on at

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Re: Flow save failed with code 'OpenApiOperationParameterValidationFailed' and message 'Input parameter 'item' validation failed in workflow operation 'Create_event_(V4)':

Many thanks for the inputs and it worked.

And if we choose Required attendees parameter and i got below error.

Please let me know if you get any idea on the below error

I choose attendees in create event action and attendees field is the (person multi select yes field in my SharePoint list) so I am getting below error in that step

Complete flow steps

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Amit_Sharma 1,569 Super User 2024 Season 1 on at

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Re: Flow save failed with code 'OpenApiOperationParameterValidationFailed' and message 'Input parameter 'item' validation failed in workflow operation 'Create_event_(V4)':

Hi @Veblitz ,
I have created sample for you.

1. After Get Items Action use initialized Variable Action Set Name and Type.

2. After That use One More Apply to each (Apply_to_each_2) Action and set value as shown in image.
outputs('Get_items_')?['body/value']?[0]?['Attendees']

3. Inside Apply to each 2 Action Use Append to string variable Action then set expression and semicolon.

items('Apply_to_each_2')?['Email']

4. Then Use Variable In final Create Event Action.

Complete Flow

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Veblitz 2,249 on at

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Re: Flow save failed with code 'OpenApiOperationParameterValidationFailed' and message 'Input parameter 'item' validation failed in workflow operation 'Create_event_(V4)':

Many Thanks.
Unfortunately, i am facing new errors and Please find below error details

Complete flow

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Amit_Sharma 1,569 Super User 2024 Season 1 on at

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Re: Flow save failed with code 'OpenApiOperationParameterValidationFailed' and message 'Input parameter 'item' validation failed in workflow operation 'Create_event_(V4)':

Hi @Veblitz, please share the formatDateTime expression used inside Create event (v4)

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Veblitz 2,249 on at

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Re: Flow save failed with code 'OpenApiOperationParameterValidationFailed' and message 'Input parameter 'item' validation failed in workflow operation 'Create_event_(V4)':

Please refer the below details that's been passed inside formatdate time expression
formatDateTime(items('Apply_to_each2')?['starttime'],'yyyy-MM-ddTHH:mm:ss')
formatDateTime(items('Apply_to_each2')?['endtime'],'yyyy-MM-ddTHH:mm:ss')

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Amit_Sharma 1,569 Super User 2024 Season 1 on at

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Re: Flow save failed with code 'OpenApiOperationParameterValidationFailed' and message 'Input parameter 'item' validation failed in workflow operation 'Create_event_(V4)':

Hi @Veblitz
Please Enter Valid Action Name in items() Function Instead of formatDateTime(items('Apply_to_each2')?['starttime'],'yyyy-MM-ddTHH:mm:ss') Please try With This.

formatDateTime(items('Apply_to_each_2')?['starttime'],'yyyy-MM-ddTHH:mm:ss')

You are missing underscore Between Apply_to_each and 2. in item() function.

After doing this you are good to go.

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Veblitz 2,249 on at

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Re: Flow save failed with code 'OpenApiOperationParameterValidationFailed' and message 'Input parameter 'item' validation failed in workflow operation 'Create_event_(V4)':

Brilliant solutions for each level of issue and great support.

Best support and please refer below and my flow ran successfully.

Awesome help

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