Hi Karen thanks for posting in the community! Just to clarify is the field containing this formula different from the field entitled "Online Air GDS Numbers"? Or is this formula currently in the field "Online Air GDS Numbers"?

I was able to create a similar formula by referencing an alternate data field in the same shape:

Could you please share a screenshot of your formula in its data field so we can recreate your issue?

As an additional note: This specific formula should not require the 'ASNUMBER' function to use mathematical operators on the referenced data.

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