Questions are at the end. First the goals, important notes, the steps to recreate the issue, then the questions.
The larger goal: To be able to transform and merge (not necessarily append) data together from different sources and make the output available for reporting or for export as whatever file type.
The focused goal pertaining to the Subject of this issue: Using a dataflow to write data to a data verse table.
IMPORTANT NOTES:
- These steps actually work in the version of Power Apps encapsulated under Microsoft Teams, but not in the stand alone online version of Power Apps in Microsoft 365, where both under the same work environment.
- The reason I need this to work in the "stand alone" online version of Power Apps based in MS 365 and not just in the version encapsulated in MS Teams, is that the version in MS Teams is more difficult to navigate and "feels" like it might be more functionally crippled or restricted in some way, but I haven't had time to dig into that yet, and I might be wrong about that.
- Also I haven't had a chance to test this in a different environment yet, but the goal is to get this to work in my work based environment so I can build solutions and insights for my department based on the data being shared by other departments.
Here is the breakdown of the 5 steps to repeat the issue and show the error message:
Step 01: Some tables were created to perform some initial tests.
The first issue/result is that I do not appear to have permissions to delete tables that I have created.
Here is a snapshot of a few of the tables I've created so far. Others are cropped out of the image to keep this clear and easier to follow.
Step 02: A "Dataflow" named "devSimple01" was created to generate data to populate the "Happy New Year Table" shown above. This Dataflow is the crux of this test and is what will facilitate the error message shown in Step 05.
Here is a screenshot of the "Dataflow" screen:
You can see the refresh error alert, which we will get back to in Steps 4 and 5.

Step 03: The devSimple01 "Dataflow" It is a 3-column table, designed to take 3 data types, from a single line query that generates two rows of data for these 3 columns. This is shown next in two parts, a screenshot of the table and the code that creates it.
Part 01: Here is the screenshot of the successfully generated Happy New Year Table's data.
Part 02: Here is the screenshot of the code that generates the data for the above table:
Step 04: When selecting the refresh error alert (shown in Step 02 above), it shows me the refresh failure history.

Step 05: Final step. After downloading the refresh failure, we can see the error message highlighted in yellow​below.
If the above is not legible, here is a copy and paste of the above message:
You are not authorized to load data to the crc29_tbl_happynewyears_raw table, please contact your administrator to fix the problem and try again.
In Summary:
• The environment I'm logged into at work allows me to create Dataverse tables, but not delete the tables I created or write data that I created to the tables I created.
• This same environment allows me to do all the above without any error in the MS Teams encapsulated version of Power Apps. Yes, yes, I hear you, why not just use that version then? The web-based stand alone MS 365 version is preferred since it is more responsive, easier to navigate etc. and appears to connect more easily to everything at work, except Dataverse tables.
Questions:
- Given the above steps, and summary, does this appear to be a configuration issue with my work account, and is there somewhere in the admin portal I can go to dig in a bit deeper to find out more?
- Note that my IS&T department is to overloaded to provide me with support, and they suggested that I submit a ticket with Microsoft. IS&T administers my account, but they are willing to work with me if I can spell out how to fix the issue step by step, such as "go here, then change this" etc. From what I've supplied above so far, is a specific configuration issue on my account suspected, and if so what are the steps to correct it?
- If this does not look like an account configuration issue, what else can I do to isolate the issue further?
- Where can I go to submit an official support ticket with Microsoft? Is that something my IS&T department will have to do? Yes they actually asked me this, so I'm reposting it here.
Thank you for your help.