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Planview Customer Success Center

Workflow error after saving the request with a UDF change (2012)

Symptoms:
 When saving a request after editing, an error message appears at a certain workflow step:
 
 
 
Error/warning messages:
Value cannot be null.
Parameter name: assemblyString


Reason:
The error occurs if more than one UDF are modified before saving the request. 
 Defect in v2012.
 


Workaround:
Modify the workflow slightly to avoid this error message, by adding an extra status step. The request will stop at this status step after it is saved. This step can be configured to escalate and conclude automatically, hence the request can continue to move in the workflow without any user intervention, regardless of the participant.

However, the request will only continue in the workflow when the workflow job runs, which means the request will reside in this extra step after saving, instead of moving immediately, until the next cycle of the workflow job. Once the job runs, the request will continue automatically.


Resolution:
Fixed by General Patch (GP) 16.00.547.000.


Additional notes:
It is also possible to continue without any changes to the workflow design, and ask users to click OK and ignore this error message, if the general patch cannot be installed for a reason. The request moves in the workflow as expected, despite the erro