Map Chart - Limited to 100 Geocodes 94 records could not be mapped

Looking at utilizing the Map Charts to display the locations of a specific Sales Rep’s customers (with sales during the Last 3 Months). When building my map chart, I get the following message "Limited to 100 Geocodes. 94 record(s) could not be mapped."

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It is my understanding I can only map 100 “new” addresses at a time (Geocoding), but my question is when will the remaining 94 addresses be mapped? If I click “Save” and go back into my Map Chart will the remaining 94 addresses be mapped?

Also, how is everyone validating the Map Chart data to confirm the expected data is in fact in the map? For example, I know my Sales Rep has 194 accounts, but how would I know accounts have been plotted/marked in my Map?

Thanks