Compare and exact match two columns data on two separate tabs in one spreadsheet

Hi,
I would greatly appreciate some help.
I am validating two separate sources of data to see if the combination of style and classification match in another tab with the same 2 column match combination.

Tab one has two columns with the below format of numbers and dots. Example like below:

Style Classification
12345 1234.56.7890
67890 2345.67.8901

I'd like to build a formula that it would not only find the match combination of two columns in another tab, but it will alert me if there is a mismatch on the classification column. The style must be an exact match.

So for example, going along with above 'tab 1'. Tab 2 would be something like:

Style Classification
67890 2345.68.8901
52597 1235.67.7891
12345 1234.56.7890

The formula would detect that the combination of "12345 1234.56.7890" there is a perfect match when comparing the two column combination on two separate tabs. A note like "match" would be reflected.
The formula will also detect that the combination "67890 2345.67.8901" has a mismatch on the classification #. Since the style is a perfect match but not the classification #. And a message like "mismatch" would be reflected.

Thanks for your help in advance.

Dear Oeldere,

Thank you for responding.

I've tried using the formula on your attachment and it brings me back result only for the first line, but then everyline after it shows "N/A". I triple checked everything I cannot find what may be wrong. Please help

Thanks again,

CHS

Thank you Xladept,

I am not that advanced yet, but I will certainly save it for future reference .
Best,
CHS

Hi, I am still having issues. I've attached a sample sheet. Thanks everyone for your help!

Wonderful! it worked!! Many thanks!!!!!