Cannot match records on calculated field

[mleiser]

I've had this working for years and can't figure out what I'm missing. I have two files. I want to import records from one file to the second based on a calculated field - the same in each file (it's a cancatenation of three fields). The field lights up on the file to import to but not from the file to import from. So I can't match the fields. I changed each field to index all and it still doesn't help. What I'm trying to do is update the matching records with the updated fields from the other file and add the others. Can't figure out what I'm doing wrong. Any help would be appreciated.

[Lee Smith]

I deleted your duplicate post.

[mleiser]

Sorry. Didn't know I had a duplicate. Any ideas?