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Will adding a domain affect schema for service on ArcGIS Server?

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07-25-2023 12:49 PM
JoshBillings
Occasional Contributor II

I feel like this is a simple question, but I don't know this off the top of my head as this will be my first time performing this.

I have a layer that is part of a Map Service on ArcGIS Server. This layer needs to have domains added to one of its fields. If I add the domain in Pro and republish the service, will this domain addition affect the schema and therefore anything using the service?

Thanks,

Josh

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MarceloMarques
Esri Regular Contributor

It will not affect anything.

| Marcelo Marques | Principal Product Engineer | Esri |
| Cloud & Database Administrator | OCP - Oracle Certified Professional |
I work with Enterprise Geodatabases since 1997.
“ I do not fear computers. I fear the lack of them." Isaac Isimov

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MarceloMarques
Esri Regular Contributor

It will not affect anything.

| Marcelo Marques | Principal Product Engineer | Esri |
| Cloud & Database Administrator | OCP - Oracle Certified Professional |
I work with Enterprise Geodatabases since 1997.
“ I do not fear computers. I fear the lack of them." Isaac Isimov
ZachBodenner
MVP Regular Contributor

Yeah it will. Once there's a domain present the behavior of the service changes so that you'll have a dropdown selection, kind of like in pro. I have had a bit of trouble getting the changes to actually stick when overwriting a service after adding a domain. You might need to run the overwrite process multiple times. 

All of that said, adding a domain is pretty non-disruptive. It'll change how users can interact with it, but it shouldn't have any concerning side-effects unless you'd been using that data field as the symbology driver.