I have suddenly started getting some (for me) inexplicable errors when moving my apps from dev to test environment – the apps are within a solution. The apps have no errors in the dev env (a sandbox env), but display many errors when moved to the test env (a production env).
Specifically:
- I have formulas that do a Refresh on my connected data-sources (SPO lists), and get the error "Only managed connections can be refreshed". This occurs on many (but not all) of my data-sources. I don't understand the difference between a managed and unmanaged connection: the solution is a managed solution in the test env.
- The apps appear unable to identify the 'Modified' column in my SPO lists (which of course does exist). All other columns seem to be handled normally. This error occurs with all the data-sources for which a formula tries to access the 'Modified' column.
I have another environment (sandbox), which I have left untouched for about 3 months. All the apps there were free from errors 3 months ago, but now, without me making any changes, display the errors noted above, just like my test env.
I am baffled. Any suggestions will be gratefully received!
Thanks, Andrew

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