Issue with Submit Button Not Updating Relate Column via Workflow on Edit Screen

May I kindly ask a question? When I click on a date tab in the calendar view, it redirects me to the Edit Screen, correct? I would like the Submit button to trigger a workflow that sets values in a Relate Column. However, it seems that the Submit button does not update the Relate Column as expected. I would like to understand why this is happening and how it can be resolved.

You mean a relation column?
A relation column does not contain actual values that can be changed.
However, if it is a single relation, then you can use it to set values in the related row.

If you can add a few screenshots - of the columns, and the workflow, that would be useful.

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Thank you for your response. Here are some example tables and the workflow.
May I ask a follow-up question? When you mentioned ‘single relation’, does that refer to the type of the column?

Yes, see below:

Can you show me how your “Relate” column is configured please?

Please see below

As I understand it, the Submit button executes the data update action first, and then proceeds with the steps in the workflow, correct?
Because even if I set the button’s action to ‘None’, it still updates the data.
Is my understanding correct?

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Yes, that’s correct.
If you look in the workflow run log, you should be able to see more information about what is happening with the onSubmit action.

Your relation looks fine. Question: does the relation depend on data that is being updated with the edit form? If so, you may need a short wait condition at the start of your workflow.

Actually, my situation is a bit different. I’ve built a volunteer sign-up system, where each department has its own schedule and calendar—let’s call this Table A.
There is also a combined calendar (Table B) that aggregates the dates from all departments into one unified calendar view.

To connect Table A with Table B, I used a Template Column based on the booking date and the volunteer’s name. The Edit Form I’m using is from Table A.

My goal is to update data in Table A and, at the same time, have the corresponding data in Table B updated as well.
To do this, I tried to make the Submit button trigger a workflow that updates the Relate Column in Table A, which is linked to Table B.

However, since the Submit button always updates Table A first, the Template Column changes right away—causing the relation to break or mismatch—before the workflow can act on Table B.
As a result, the workflow can’t update the related row in Table B because the relation no longer matches.

Do you have any suggestions on how to solve this problem?
Is there anything I should adjust in the structure or the workflow?
Any recommendations would be greatly appreciated.