ArcGIS Pro 3.1.5: The “join field” tool fails to detect the “ObjectID” field in the input or join tables,

[JamalNUMAN]

ArcGIS Pro 3.1.5: The “join field” tool fails to detect the “ObjectID” field in the input or join tables,

In the screenshot below, it appears that the “ObjectID” field is not populated in either the input table or the join table.

What could be the issue here?

[DanPatterson]

see if the temporary join works

Add Join (Data Management)—ArcGIS Pro | Documentation

and you should use this tool first since your object id fields have different capitalization and one may not be recognized as an OID field, or they are located in different geodatabases.

Validate Join (Data Management)—ArcGIS Pro | Documentation

[JamalNUMAN]

Many thanks for the input.

I just validated the model, and the fields appear as expected.

[DanPatterson]

So it worked