How to check and add new serial number on the excel table

[ABCDEFG1234]

Hi all master. 

I create a Microsoft form that allow applicant to submit the accident case to me. One of the  multiple choice question let them select their department. (Eg: Transport, Accounting, Human Resource,They only can select one answer)

after that, I want to create the case ID in my excel table with a pattern: Department_Datetime_serial number: Transport_13052021_001

I am confused about how to check the case ID automatically and add a new incremental case ID by power automation.

[v-LilyW-msft]

Hi @ABCDEFG1234 

Thank you for posting.

According to your description you want to check the case ID automatically and add a new incremental case ID by power automation.

Do you have to increase caseID from 001, it can increase from 1? If you can accept the caseID increase from 1, please refer to the following steps:

This is my flow

Flow in detail

Use the Expression:formatDateTime(outputs('Get_response_details')?['body/submitDate'],'ddMMyyyy') to format the Submissiontime as ‘ddMMyyyy’.

Then please fill the action and use contact function to contact department_Datetime_ResponseID

Expression:concat(outputs('Get_response_details')?['body/r6700fddef5514795b705250530a85db6'],'_',outputs('Compose'),'_',triggerOutputs()?['body/resourceData/responseId'])

You can select the content in contact from the screenshot as below:

Then save Flow and can test it.

When a new response is submitted as below：

The row can be created

Hope the content above may help you.

Best Regards

Lily

[ABCDEFG1234]

is it possible to add one more step to check whether the Serial number existing or not??

The serial number will be reset to 001 in each month.