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Yashar SGJYashar SGJ 

Process builder for Approval doesn't work

Hello, I created a process that should notify when a certain field receives a record in Opportunities.
But when I try it out (as the admin) I always receive the error message:

The record couldn’t be saved because it failed to trigger a flow. A flow trigger failed to execute the flow with version ID 30158000000CuOw. Contact your administrator for help. 

Maybe it doesn't work because I am the administrator myself?
What can I do?

Thanks in advance:)
NagendraNagendra (Salesforce Developers) 
Hi Yashar SGJ,

You need to check if the process builder is getting NULL values for any field on opportunity [ lookup or any other ].

 Provide legitimate value; it will work...!

There is always a missing value in process builder which brings this exception.

Check whether  your process invokes any apex methods which makes any callouts? Also, did you check the debug logs to know what is causing the process to fail.

If you have set the debug log level for workflow to Finer. If not, please set it.

For more information please refer to the below link.
https://success.salesforce.com/issues_view?id=a1p300000008Xn7AAE

Please mark my solution as best answer if it helps you.

Best Regards,
Nagendra.P