Issue updating connections on workbooks to datasources

Hi,
I'm trying to update connections on workbooks. The example provided in samples works for datasources, but when I'm updating workbooks I'm getting the following error:

400039: Bad Request
There was a problem updating connection {CONNECTION_ID} for workbook {WORKBOOK_ID}.

Maybe it's a different issue, but how would one update workbook connections to point to a different datasource on Tableau? From what I can see the connections get updated by simply overriding the attributes on the ConnectionItem class and then building an xml/text request. What I can't see is how to change datasource_name/datasource_id on the ConnectionItem class (it's private methods).

UPDATE:
I've also noticed I can not publish new workbooks. Even if I just download a wb from the server, give it a different name (By setting WorkbookItem(project_id='123', name='new_name'), and try to upload it. The error I get is:

400011: Bad Request
here was a problem publishing the file {FILE_PATH}

UPDATE:
I've managed to fix uploading issue.

I also checked the Tableau logs on updating connections on workbooks and it's throwing a java error saying: dbclass: sqlproxy is not editable (errorCode=60004)
So my question stays the same: how would one point a workbook to use a different datasource

Basically I'm trying to replicate this
`for wb in wb_files:

    t_file = TableauFileManager.open(filename=wb_files[wb], logger_obj=logger)
    dses = t_file.datasources
    for ds in dses:
        if ds.is_published is True:
            # Set the Site of the published data source
            ds.published_ds_site = d_site_connection.site_content_url
            o_ds_content_url = ds.published_ds_content_url
            if o_ds_content_url in orig_ds_content_url:
                ds.published_ds_content_url = orig_ds_content_url[o_ds_content_url].new_content_url
        # If the datasources AREN'T published, then you may need to change details directly here
    temp_wb_file = t_file.save_new_file('Modified Workbook'.format(wb))
    new_workbook_luid = d.workbooks.publish_workbook(workbook_filename=temp_wb_file, workbook_name=wb,
                                           project_obj=dest_project,
                                           overwrite=True)
    print('Published new workbook {}'.format(new_workbook_luid))
    os.remove(temp_wb_file)`

I also faced the 400039 issue, anybody have found a way to work around it?
ServerResponseError:

400039: Bad Request
	There was a problem updating connection '' for workbook ''.

@davidhacrypto

@davidhacrypto and @DaniilBalabanov33N were you able to find a resolution to the below issue? I am experiencing the same error. I am trying to update connection email and password for the data source in a tableau workbook on Tableau Cloud using the tableauserverclient package on python and I get the same error as both of you:

400039: Bad Request There was a problem updating connection '<connection id>' for workbook '<workbook id>'.

This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 14 days if no further activity occurs. If this is still relevant, please comment to keep it open.

Closing as not-planned. The 400039: sqlproxy is not editable error you're hitting from the Update Workbook Connection REST endpoint is a server-side limitation on how live-to-published-datasource connections can be repointed via REST — TSC just surfaces it. To repoint a workbook at a different published datasource, the working approach is to edit the .twb XML directly with document-api-python (https://github.com/tableau/document-api-python) and republish the modified file via workbooks.publish. If you can identify a case where TSC is calling the wrong endpoint or mangling the payload, please open a fresh issue.

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Issue updating connections on workbooks to datasources #703

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Issue updating connections on workbooks to datasources #703

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DaniilBalabanov33N commented on Oct 1, 2020

davidhacrypto commented on Jul 19, 2022

TeyTetterfio commented on Aug 7, 2023

github-actions commented on Aug 18, 2026

jacalata commented on Aug 25, 2026

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