Project and Sub Project assignment issue

[jbugarin]

I am getting this error when trying to add a project as a sub project of another on the platform. " PRJxxx can not be the New parent of PRJxxxx". I am unable to determine what is causing this issue, any possible guidance on it. 

[Mike Allen · Accepted solution]

That message exists in two business rules: Change Parent and Validate change parent

Unfortunately, they call an API that it seems we don't have access to look.  There are clues in other script includes, like one says if the project is already a child of the other project, it cannot be made a parent.

But, unless we can see into the script include, I don't know how much we can uncover.

[jbugarin]

Hi Mike,

Thanks for the guidance on this issue. I have went to check the scripts you did mention and see the API call . 

Here is the error message in the logs that I have received when looking into the error log:" Unable to Change Parent: no thrown error" .

[Daniel Dominc]

Hi,

I had the same problem and I figured out the answer through another post. 

The issue is due to Parent Project and Child Projects having different "calculation" values (automatics vs Manual)

[PaulaaO]

I've had the same issue and found the following KB which was helpful, especially the Diagnostics part:

Getting Error while adding sub project, Error: PRJXXXXXXX can not be the New Parent to <sub-project ...