How to tell what's causing a field to be read-only

[AmenaA]

Possibilities:

1. Using Debug Security to see what ACL's could be possibly running to make it read-only

2. Check if any client-scripts / UI policies running to make it read-only

3. Check if the Dictionary Entry is marked as read-only

There's a field that's read-only and it doesn't appear to be caused by any of the above.

Is there any other way to tell what could possibly be causing a field on a table to be read-only?

Thanks in Advance

[LorenzVdV · Accepted solution]

Access Analyzer is waaaay easier to interpret than Debug Security, so check that out.

Exploring Access Analyzer (servicenow.com)

Data policies can also make fields read-only. 

[Sandeep Rajput]

@AmenaA A Data Policy could be potential cause if the ones mentioned by you do not apply.

Hope this helps.

[AmenaA]

Thank you for that!

But there seems to be no Data policies running on that table.

[Sandeep Rajput · Accepted solution]

@AmenaA If there are no Data Policy/UI Policy/Client script, then it has to be ACLs. I recommend using Access Analyser to see which ACL is failing.

[AmenaA]

Thank you for that @Sandeep Rajput !!

That helped!!!