Unable to edit Product field on Software Model — “Security prevents writing to this field

[pavan Punna]

On the Software Model table (cmdb_software_product_model), I am trying to update the Product field (product) on an existing Software Model record. The field appears read-only/greyed out, and when I try to edit/update it, I get this message:

Security prevents writing to this field

I checked the Dictionary Entry for the field:

• Table: cmdb_software_product_model
• Column label: Product
• Column name: product
• Type: Reference
• Reference table: Software Product
• Dictionary Read only is not checked
• Field is mandatory
• Reference qualifier exists:
  

  I also checked ACLs and can see table-level write ACLs for cmdb_software_product_model, but I only see a list_edit ACL for cmdb_software_product_model.product, not a clear field-level write ACL for the Product field.

  Question:
  Is the Product field on Software Model intentionally locked by OOTB SAM behavior/security? What is the supported way to correct the Product mapping on an existing Software Model if it was created with the wrong product?

[fknell]

Hi @pavan Punna,

ootb the field is available to edit once it's empty. 

The reference table (Software Product) holds version-agnostic, pre-normalized software product data pushed by ServiceNow’s Content Data Service and is therefore read-only. During normalization or data ingest this table is used as a reference and values will be added to created software models. 

Hope this helps

[pavan Punna]

Thanks for reply . What if we select a DMAP and after product field is autofilled and saving the record. 
is it possible to edit the product name without changing the dmap ?