Feature Writer transformer issue writing to ESRI ArcGIS Feature

I assume your webservice/webconnection is configured and authenticate properly

check the fme package version under Utilties > FME options > Packages

I had to get to 3.25.1 for less bugs

I can only recommend duplicating the steps in a new workbench, in the 2026.1.2 form

Hi,

This is with the 3.25.1 safe.esri-agol Connector package, on Form 2026.1.2.  I had read in the release documentation that the Esri ArcGIS Feature was now requiring the feature id from ESRI as a parameter but needing to visit the navigator window outside of the transformer doesn’t seem as intuitive as working with prior releases of the package.  Also to note, this issue doesn’t present while working with a generic “Writer” against the same feature service.  

Yes, due to this packaged transformer change, its alot hard to work with Portal in multiple environments. Groups and item identifiers differ. There is a huge need to FME workspace that assists the CI/CD promotion of Portal test to prod, using the arcgis Clone Items python library

For me what is happening is I will set up the feature writer and input all the writer parameters (the “Parameters..” button under “Dataset”) and it will be ok.

The “Dataset” spot will still be blank but there won’t be a red cog warning in the navigator.

However, if I then change anything (like changing the Feature Operation from insert to fme_db_operation) then I will get the red cog for Dataset in the navigator.

My workaround to clear out that red cog for the Dataset is opening the Parameters window (the button right under “Dataset”) and clicking ok. I don’t need to change anything because the parameters are all the same but this clears out the red cog.

I’m new to using the feature writer so I thought this was a me problem 😆… I don’t know what the behaviour used to be.

Hi ​@chadprop and ​@sammy,

We are aware of this behavior with the FeatureWriter and FeatureReader transformers in FME Form 2026.x, where the transformer may be incorrectly flagged as having invalid parameters after it is opened/modified. Hovering your mouse over the red exclamation indicator displays the following message: "Parameter ‘Dataset:’ must have a value."

Specifically, the indicator appears when you open/modify FeatureWriter or FeatureReader transformer parameter without opening the format parameter. This behavior is being tracked internally as FMEFORM-37257.

We have also noticed that this can interrupt workspace runs by displaying the "Incomplete Transformer" warning message. However, based on our testing, we have not observed any changes in the actual behavior of the transformer beyond this visual indication and warning. Please let us know if you observe that the transformer does not behave as expected.

If you have any additional information or encounter further issues in the meantime, please don’t hesitate to let us know.

Thank you for your understanding.